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Finding the Fourth Proportional to 181,045.76, 271,565.44 and 74,478.71

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Solution

The fourth proportional to 181,045.76, 271,565.44 and 74,478.71 is: 111,716.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,045.76 : 271,565.44 = 74,478.71 : x
  2. Step 2: Convert to fraction form
    181,045.76/271,565.44 = 74,478.71/x
  3. Step 3: Cross multiply
    181,045.76x = 271,565.44 × 74,478.71
  4. Step 4: Simplify right side
    181,045.76x = 20,225,844,144.50
  5. Step 5: Solve for x
    x = 20,225,844,144.50/181,045.76
  6. Step 6: Final answer
    x = 111,716.75

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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.