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Finding the Fourth Proportional to 125,247.29, 187,830.83 and 40,984.61

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Solution

The fourth proportional to 125,247.29, 187,830.83 and 40,984.61 is: 61,463.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,247.29 : 187,830.83 = 40,984.61 : x
  2. Step 2: Convert to fraction form
    125,247.29/187,830.83 = 40,984.61/x
  3. Step 3: Cross multiply
    125,247.29x = 187,830.83 × 40,984.61
  4. Step 4: Simplify right side
    125,247.29x = 7,698,172,374.37
  5. Step 5: Solve for x
    x = 7,698,172,374.37/125,247.29
  6. Step 6: Final answer
    x = 61,463.79

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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.