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Finding the Fourth Proportional to 242,167.71, 363,247.91 and 108,953.90

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Solution

The fourth proportional to 242,167.71, 363,247.91 and 108,953.90 is: 163,429.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,167.71 : 363,247.91 = 108,953.90 : x
  2. Step 2: Convert to fraction form
    242,167.71/363,247.91 = 108,953.90/x
  3. Step 3: Cross multiply
    242,167.71x = 363,247.91 × 108,953.90
  4. Step 4: Simplify right side
    242,167.71x = 39,577,274,917.49
  5. Step 5: Solve for x
    x = 39,577,274,917.49/242,167.71
  6. Step 6: Final answer
    x = 163,429.20

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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.