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Finding the Fourth Proportional to 62,428,867.80, 93,643,301.70 and 61,153,409.40

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Solution

The fourth proportional to 62,428,867.80, 93,643,301.70 and 61,153,409.40 is: 91,730,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,428,867.80 : 93,643,301.70 = 61,153,409.40 : x
  2. Step 2: Convert to fraction form
    62,428,867.80/93,643,301.70 = 61,153,409.40/x
  3. Step 3: Cross multiply
    62,428,867.80x = 93,643,301.70 × 61,153,409.40
  4. Step 4: Simplify right side
    62,428,867.80x = 5,726,607,166,427,816
  5. Step 5: Solve for x
    x = 5,726,607,166,427,816/62,428,867.80
  6. Step 6: Final answer
    x = 91,730,114.10

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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.