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Finding the Fourth Proportional to 72,792,117,946.20, 109,188,176,919.30 and 72,792,117,946.20

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Solution

The fourth proportional to 72,792,117,946.20, 109,188,176,919.30 and 72,792,117,946.20 is: 109,188,176,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,792,117,946.20 : 109,188,176,919.30 = 72,792,117,946.20 : x
  2. Step 2: Convert to fraction form
    72,792,117,946.20/109,188,176,919.30 = 72,792,117,946.20/x
  3. Step 3: Cross multiply
    72,792,117,946.20x = 109,188,176,919.30 × 72,792,117,946.20
  4. Step 4: Simplify right side
    72,792,117,946.20x = 7,948,038,652,640,237,715,456
  5. Step 5: Solve for x
    x = 7,948,038,652,640,237,715,456/72,792,117,946.20
  6. Step 6: Final answer
    x = 109,188,176,919.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.