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Finding the Fourth Proportional to 259,167.90, 388,591.47 and 101,210.61

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Solution

The fourth proportional to 259,167.90, 388,591.47 and 101,210.61 is: 151,753.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,167.90 : 388,591.47 = 101,210.61 : x
  2. Step 2: Convert to fraction form
    259,167.90/388,591.47 = 101,210.61/x
  3. Step 3: Cross multiply
    259,167.90x = 388,591.47 × 101,210.61
  4. Step 4: Simplify right side
    259,167.90x = 39,329,579,592.98
  5. Step 5: Solve for x
    x = 39,329,579,592.98/259,167.90
  6. Step 6: Final answer
    x = 151,753.28

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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.