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Finding the Fourth Proportional to 136,235.66, 204,354.54 and 47,488.91

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Solution

The fourth proportional to 136,235.66, 204,354.54 and 47,488.91 is: 71,233.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,235.66 : 204,354.54 = 47,488.91 : x
  2. Step 2: Convert to fraction form
    136,235.66/204,354.54 = 47,488.91/x
  3. Step 3: Cross multiply
    136,235.66x = 204,354.54 × 47,488.91
  4. Step 4: Simplify right side
    136,235.66x = 9,704,573,336.38
  5. Step 5: Solve for x
    x = 9,704,573,336.38/136,235.66
  6. Step 6: Final answer
    x = 71,233.73

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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.