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Finding the Fourth Proportional to 119,221.62, 178,715.79 and 56,935.86

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Solution

The fourth proportional to 119,221.62, 178,715.79 and 56,935.86 is: 85,348.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,221.62 : 178,715.79 = 56,935.86 : x
  2. Step 2: Convert to fraction form
    119,221.62/178,715.79 = 56,935.86/x
  3. Step 3: Cross multiply
    119,221.62x = 178,715.79 × 56,935.86
  4. Step 4: Simplify right side
    119,221.62x = 10,175,337,199.23
  5. Step 5: Solve for x
    x = 10,175,337,199.23/119,221.62
  6. Step 6: Final answer
    x = 85,348.09

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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.