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Finding the Fourth Proportional to 117,462.52, 162,098.40 and 63,747.56

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Solution

The fourth proportional to 117,462.52, 162,098.40 and 63,747.56 is: 87,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,462.52 : 162,098.40 = 63,747.56 : x
  2. Step 2: Convert to fraction form
    117,462.52/162,098.40 = 63,747.56/x
  3. Step 3: Cross multiply
    117,462.52x = 162,098.40 × 63,747.56
  4. Step 4: Simplify right side
    117,462.52x = 10,333,377,479.90
  5. Step 5: Solve for x
    x = 10,333,377,479.90/117,462.52
  6. Step 6: Final answer
    x = 87,971.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.