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Finding the Fourth Proportional to 125,710.47, 188,565.21 and 50,829.71

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Solution

The fourth proportional to 125,710.47, 188,565.21 and 50,829.71 is: 76,244.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,710.47 : 188,565.21 = 50,829.71 : x
  2. Step 2: Convert to fraction form
    125,710.47/188,565.21 = 50,829.71/x
  3. Step 3: Cross multiply
    125,710.47x = 188,565.21 × 50,829.71
  4. Step 4: Simplify right side
    125,710.47x = 9,584,713,997.56
  5. Step 5: Solve for x
    x = 9,584,713,997.56/125,710.47
  6. Step 6: Final answer
    x = 76,244.36

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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.