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Finding the Fourth Proportional to 136,962.38, 205,476.38 and 43,468.13

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Solution

The fourth proportional to 136,962.38, 205,476.38 and 43,468.13 is: 65,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,962.38 : 205,476.38 = 43,468.13 : x
  2. Step 2: Convert to fraction form
    136,962.38/205,476.38 = 43,468.13/x
  3. Step 3: Cross multiply
    136,962.38x = 205,476.38 × 43,468.13
  4. Step 4: Simplify right side
    136,962.38x = 8,931,672,753.05
  5. Step 5: Solve for x
    x = 8,931,672,753.05/136,962.38
  6. Step 6: Final answer
    x = 65,212.60

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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.