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Finding the Fourth Proportional to 117,614.92, 162,308.70 and 63,899.90

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Solution

The fourth proportional to 117,614.92, 162,308.70 and 63,899.90 is: 88,181.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,614.92 : 162,308.70 = 63,899.90 : x
  2. Step 2: Convert to fraction form
    117,614.92/162,308.70 = 63,899.90/x
  3. Step 3: Cross multiply
    117,614.92x = 162,308.70 × 63,899.90
  4. Step 4: Simplify right side
    117,614.92x = 10,371,509,699.13
  5. Step 5: Solve for x
    x = 10,371,509,699.13/117,614.92
  6. Step 6: Final answer
    x = 88,181.92

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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.