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Finding the Fourth Proportional to 156,451.66, 215,901.92 and 88,482.02

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Solution

The fourth proportional to 156,451.66, 215,901.92 and 88,482.02 is: 122,104.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,451.66 : 215,901.92 = 88,482.02 : x
  2. Step 2: Convert to fraction form
    156,451.66/215,901.92 = 88,482.02/x
  3. Step 3: Cross multiply
    156,451.66x = 215,901.92 × 88,482.02
  4. Step 4: Simplify right side
    156,451.66x = 19,103,438,003.48
  5. Step 5: Solve for x
    x = 19,103,438,003.48/156,451.66
  6. Step 6: Final answer
    x = 122,104.41

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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.