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Finding the Fourth Proportional to 185,565.60, 278,421.30 and 73,226.70

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Solution

The fourth proportional to 185,565.60, 278,421.30 and 73,226.70 is: 109,868.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,565.60 : 278,421.30 = 73,226.70 : x
  2. Step 2: Convert to fraction form
    185,565.60/278,421.30 = 73,226.70/x
  3. Step 3: Cross multiply
    185,565.60x = 278,421.30 × 73,226.70
  4. Step 4: Simplify right side
    185,565.60x = 20,387,873,008.71
  5. Step 5: Solve for x
    x = 20,387,873,008.71/185,565.60
  6. Step 6: Final answer
    x = 109,868.82

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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.