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Finding the Fourth Proportional to 181,165.72, 271,501.48 and 68,785.76

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Solution

The fourth proportional to 181,165.72, 271,501.48 and 68,785.76 is: 103,084.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,165.72 : 271,501.48 = 68,785.76 : x
  2. Step 2: Convert to fraction form
    181,165.72/271,501.48 = 68,785.76/x
  3. Step 3: Cross multiply
    181,165.72x = 271,501.48 × 68,785.76
  4. Step 4: Simplify right side
    181,165.72x = 18,675,435,642.92
  5. Step 5: Solve for x
    x = 18,675,435,642.92/181,165.72
  6. Step 6: Final answer
    x = 103,084.82

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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.