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Finding the Fourth Proportional to 268,562.92, 402,882.72 and 100,068.88

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Solution

The fourth proportional to 268,562.92, 402,882.72 and 100,068.88 is: 150,117.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,562.92 : 402,882.72 = 100,068.88 : x
  2. Step 2: Convert to fraction form
    268,562.92/402,882.72 = 100,068.88/x
  3. Step 3: Cross multiply
    268,562.92x = 402,882.72 × 100,068.88
  4. Step 4: Simplify right side
    268,562.92x = 40,316,022,561.75
  5. Step 5: Solve for x
    x = 40,316,022,561.75/268,562.92
  6. Step 6: Final answer
    x = 150,117.61

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1.5x scale

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.