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Finding the Fourth Proportional to 98,792,578.60, 148,272,848.70 and 44,289,039.40

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Solution

The fourth proportional to 98,792,578.60, 148,272,848.70 and 44,289,039.40 is: 66,471,207.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,792,578.60 : 148,272,848.70 = 44,289,039.40 : x
  2. Step 2: Convert to fraction form
    98,792,578.60/148,272,848.70 = 44,289,039.40/x
  3. Step 3: Cross multiply
    98,792,578.60x = 148,272,848.70 × 44,289,039.40
  4. Step 4: Simplify right side
    98,792,578.60x = 6,566,862,038,024,538
  5. Step 5: Solve for x
    x = 6,566,862,038,024,538/98,792,578.60
  6. Step 6: Final answer
    x = 66,471,207.97

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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.