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Finding the Fourth Proportional to 144,023.55, 216,035.33 and 135,712.95

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Solution

The fourth proportional to 144,023.55, 216,035.33 and 135,712.95 is: 203,569.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,023.55 : 216,035.33 = 135,712.95 : x
  2. Step 2: Convert to fraction form
    144,023.55/216,035.33 = 135,712.95/x
  3. Step 3: Cross multiply
    144,023.55x = 216,035.33 × 135,712.95
  4. Step 4: Simplify right side
    144,023.55x = 29,318,791,259.96
  5. Step 5: Solve for x
    x = 29,318,791,259.96/144,023.55
  6. Step 6: Final answer
    x = 203,569.43

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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.