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Finding the Fourth Proportional to 118,003.53, 176,939.67 and 39,074.70

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Solution

The fourth proportional to 118,003.53, 176,939.67 and 39,074.70 is: 58,590.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,003.53 : 176,939.67 = 39,074.70 : x
  2. Step 2: Convert to fraction form
    118,003.53/176,939.67 = 39,074.70/x
  3. Step 3: Cross multiply
    118,003.53x = 176,939.67 × 39,074.70
  4. Step 4: Simplify right side
    118,003.53x = 6,913,864,523.35
  5. Step 5: Solve for x
    x = 6,913,864,523.35/118,003.53
  6. Step 6: Final answer
    x = 58,590.32

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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.