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Finding the Fourth Proportional to 65,712,813.20, 98,569,219.80 and 48,706,701.20

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Solution

The fourth proportional to 65,712,813.20, 98,569,219.80 and 48,706,701.20 is: 73,060,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,712,813.20 : 98,569,219.80 = 48,706,701.20 : x
  2. Step 2: Convert to fraction form
    65,712,813.20/98,569,219.80 = 48,706,701.20/x
  3. Step 3: Cross multiply
    65,712,813.20x = 98,569,219.80 × 48,706,701.20
  4. Step 4: Simplify right side
    65,712,813.20x = 4,800,981,536,315,724
  5. Step 5: Solve for x
    x = 4,800,981,536,315,724/65,712,813.20
  6. Step 6: Final answer
    x = 73,060,051.80

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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.