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Finding the Fourth Proportional to 239,402.88, 359,165.76 and 89,645.28

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Solution

The fourth proportional to 239,402.88, 359,165.76 and 89,645.28 is: 134,490.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,402.88 : 359,165.76 = 89,645.28 : x
  2. Step 2: Convert to fraction form
    239,402.88/359,165.76 = 89,645.28/x
  3. Step 3: Cross multiply
    239,402.88x = 359,165.76 × 89,645.28
  4. Step 4: Simplify right side
    239,402.88x = 32,197,515,121.61
  5. Step 5: Solve for x
    x = 32,197,515,121.61/239,402.88
  6. Step 6: Final answer
    x = 134,490.93

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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.