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Finding the Fourth Proportional to 92,593.36, 138,080.68 and 82,387.36

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Solution

The fourth proportional to 92,593.36, 138,080.68 and 82,387.36 is: 122,860.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,593.36 : 138,080.68 = 82,387.36 : x
  2. Step 2: Convert to fraction form
    92,593.36/138,080.68 = 82,387.36/x
  3. Step 3: Cross multiply
    92,593.36x = 138,080.68 × 82,387.36
  4. Step 4: Simplify right side
    92,593.36x = 11,376,102,001.80
  5. Step 5: Solve for x
    x = 11,376,102,001.80/92,593.36
  6. Step 6: Final answer
    x = 122,860.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.