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Finding the Fourth Proportional to 242,479.32, 363,718.98 and 84,709.14

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Solution

The fourth proportional to 242,479.32, 363,718.98 and 84,709.14 is: 127,063.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,479.32 : 363,718.98 = 84,709.14 : x
  2. Step 2: Convert to fraction form
    242,479.32/363,718.98 = 84,709.14/x
  3. Step 3: Cross multiply
    242,479.32x = 363,718.98 × 84,709.14
  4. Step 4: Simplify right side
    242,479.32x = 30,810,321,997.48
  5. Step 5: Solve for x
    x = 30,810,321,997.48/242,479.32
  6. Step 6: Final answer
    x = 127,063.71

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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.