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Finding the Fourth Proportional to 242,545.76, 363,775.32 and 84,819.44

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Solution

The fourth proportional to 242,545.76, 363,775.32 and 84,819.44 is: 127,214.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,545.76 : 363,775.32 = 84,819.44 : x
  2. Step 2: Convert to fraction form
    242,545.76/363,775.32 = 84,819.44/x
  3. Step 3: Cross multiply
    242,545.76x = 363,775.32 × 84,819.44
  4. Step 4: Simplify right side
    242,545.76x = 30,855,218,928.22
  5. Step 5: Solve for x
    x = 30,855,218,928.22/242,545.76
  6. Step 6: Final answer
    x = 127,214.01

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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.