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Finding the Fourth Proportional to 118,805.24, 178,189.24 and 38,842.66

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Solution

The fourth proportional to 118,805.24, 178,189.24 and 38,842.66 is: 58,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,805.24 : 178,189.24 = 38,842.66 : x
  2. Step 2: Convert to fraction form
    118,805.24/178,189.24 = 38,842.66/x
  3. Step 3: Cross multiply
    118,805.24x = 178,189.24 × 38,842.66
  4. Step 4: Simplify right side
    118,805.24x = 6,921,344,064.98
  5. Step 5: Solve for x
    x = 6,921,344,064.98/118,805.24
  6. Step 6: Final answer
    x = 58,257.90

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1.5x scale

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.