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Finding the Fourth Proportional to 110,669.72, 166,171.80 and 88,417.04

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Solution

The fourth proportional to 110,669.72, 166,171.80 and 88,417.04 is: 132,759.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,669.72 : 166,171.80 = 88,417.04 : x
  2. Step 2: Convert to fraction form
    110,669.72/166,171.80 = 88,417.04/x
  3. Step 3: Cross multiply
    110,669.72x = 166,171.80 × 88,417.04
  4. Step 4: Simplify right side
    110,669.72x = 14,692,418,687.47
  5. Step 5: Solve for x
    x = 14,692,418,687.47/110,669.72
  6. Step 6: Final answer
    x = 132,759.16

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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.