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Finding the Fourth Proportional to 242,491.13, 363,737.34 and 84,719.55

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Solution

The fourth proportional to 242,491.13, 363,737.34 and 84,719.55 is: 127,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,491.13 : 363,737.34 = 84,719.55 : x
  2. Step 2: Convert to fraction form
    242,491.13/363,737.34 = 84,719.55/x
  3. Step 3: Cross multiply
    242,491.13x = 363,737.34 × 84,719.55
  4. Step 4: Simplify right side
    242,491.13x = 30,815,663,763.00
  5. Step 5: Solve for x
    x = 30,815,663,763.00/242,491.13
  6. Step 6: Final answer
    x = 127,079.55

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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.