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Finding the Fourth Proportional to 356,343.91, 534,691.50 and 166,817.12

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Solution

The fourth proportional to 356,343.91, 534,691.50 and 166,817.12 is: 250,307.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,343.91 : 534,691.50 = 166,817.12 : x
  2. Step 2: Convert to fraction form
    356,343.91/534,691.50 = 166,817.12/x
  3. Step 3: Cross multiply
    356,343.91x = 534,691.50 × 166,817.12
  4. Step 4: Simplify right side
    356,343.91x = 89,195,697,234.62
  5. Step 5: Solve for x
    x = 89,195,697,234.62/356,343.91
  6. Step 6: Final answer
    x = 250,307.91

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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.