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Finding the Fourth Proportional to 65,361,908.40, 98,042,862.60 and 60,435,034.80

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Solution

The fourth proportional to 65,361,908.40, 98,042,862.60 and 60,435,034.80 is: 90,652,552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,361,908.40 : 98,042,862.60 = 60,435,034.80 : x
  2. Step 2: Convert to fraction form
    65,361,908.40/98,042,862.60 = 60,435,034.80/x
  3. Step 3: Cross multiply
    65,361,908.40x = 98,042,862.60 × 60,435,034.80
  4. Step 4: Simplify right side
    65,361,908.40x = 5,925,223,813,122,618
  5. Step 5: Solve for x
    x = 5,925,223,813,122,618/65,361,908.40
  6. Step 6: Final answer
    x = 90,652,552.20

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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.