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Finding the Fourth Proportional to 181,354.96, 250,275.92 and 100,785.88

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Solution

The fourth proportional to 181,354.96, 250,275.92 and 100,785.88 is: 139,087.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,354.96 : 250,275.92 = 100,785.88 : x
  2. Step 2: Convert to fraction form
    181,354.96/250,275.92 = 100,785.88/x
  3. Step 3: Cross multiply
    181,354.96x = 250,275.92 × 100,785.88
  4. Step 4: Simplify right side
    181,354.96x = 25,224,278,840.01
  5. Step 5: Solve for x
    x = 25,224,278,840.01/181,354.96
  6. Step 6: Final answer
    x = 139,087.89

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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.