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Finding the Fourth Proportional to 126,882.68, 175,085.89 and 75,885.08

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Solution

The fourth proportional to 126,882.68, 175,085.89 and 75,885.08 is: 104,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,882.68 : 175,085.89 = 75,885.08 : x
  2. Step 2: Convert to fraction form
    126,882.68/175,085.89 = 75,885.08/x
  3. Step 3: Cross multiply
    126,882.68x = 175,085.89 × 75,885.08
  4. Step 4: Simplify right side
    126,882.68x = 13,286,405,704.38
  5. Step 5: Solve for x
    x = 13,286,405,704.38/126,882.68
  6. Step 6: Final answer
    x = 104,714.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.