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Finding the Fourth Proportional to 331,853.60, 497,780.40 and 95,175.20

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Solution

The fourth proportional to 331,853.60, 497,780.40 and 95,175.20 is: 142,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,853.60 : 497,780.40 = 95,175.20 : x
  2. Step 2: Convert to fraction form
    331,853.60/497,780.40 = 95,175.20/x
  3. Step 3: Cross multiply
    331,853.60x = 497,780.40 × 95,175.20
  4. Step 4: Simplify right side
    331,853.60x = 47,376,349,126.08
  5. Step 5: Solve for x
    x = 47,376,349,126.08/331,853.60
  6. Step 6: Final answer
    x = 142,762.80

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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.