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Finding the Fourth Proportional to 124,573,710.15, 186,804,578.03 and 47,871,246.15

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Solution

The fourth proportional to 124,573,710.15, 186,804,578.03 and 47,871,246.15 is: 71,785,354.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,573,710.15 : 186,804,578.03 = 47,871,246.15 : x
  2. Step 2: Convert to fraction form
    124,573,710.15/186,804,578.03 = 47,871,246.15/x
  3. Step 3: Cross multiply
    124,573,710.15x = 186,804,578.03 × 47,871,246.15
  4. Step 4: Simplify right side
    124,573,710.15x = 8,942,567,936,581,656
  5. Step 5: Solve for x
    x = 8,942,567,936,581,656/124,573,710.15
  6. Step 6: Final answer
    x = 71,785,354.44

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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.