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Finding the Fourth Proportional to 144,682.40, 217,023.60 and 88,695.20

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Solution

The fourth proportional to 144,682.40, 217,023.60 and 88,695.20 is: 133,042.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,682.40 : 217,023.60 = 88,695.20 : x
  2. Step 2: Convert to fraction form
    144,682.40/217,023.60 = 88,695.20/x
  3. Step 3: Cross multiply
    144,682.40x = 217,023.60 × 88,695.20
  4. Step 4: Simplify right side
    144,682.40x = 19,248,951,606.72
  5. Step 5: Solve for x
    x = 19,248,951,606.72/144,682.40
  6. Step 6: Final answer
    x = 133,042.80

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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.