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Finding the Fourth Proportional to 194,757.62, 291,367.78 and 147,508.85

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Solution

The fourth proportional to 194,757.62, 291,367.78 and 147,508.85 is: 220,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,757.62 : 291,367.78 = 147,508.85 : x
  2. Step 2: Convert to fraction form
    194,757.62/291,367.78 = 147,508.85/x
  3. Step 3: Cross multiply
    194,757.62x = 291,367.78 × 147,508.85
  4. Step 4: Simplify right side
    194,757.62x = 42,979,326,154.85
  5. Step 5: Solve for x
    x = 42,979,326,154.85/194,757.62
  6. Step 6: Final answer
    x = 220,681.10

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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.