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Finding the Fourth Proportional to 125,887.38, 188,698.83 and 63,426.90

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Solution

The fourth proportional to 125,887.38, 188,698.83 and 63,426.90 is: 95,073.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,887.38 : 188,698.83 = 63,426.90 : x
  2. Step 2: Convert to fraction form
    125,887.38/188,698.83 = 63,426.90/x
  3. Step 3: Cross multiply
    125,887.38x = 188,698.83 × 63,426.90
  4. Step 4: Simplify right side
    125,887.38x = 11,968,581,820.53
  5. Step 5: Solve for x
    x = 11,968,581,820.53/125,887.38
  6. Step 6: Final answer
    x = 95,073.72

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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.