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Finding the Fourth Proportional to 147,226.47, 220,860.96 and 72,350.88

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Solution

The fourth proportional to 147,226.47, 220,860.96 and 72,350.88 is: 108,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,226.47 : 220,860.96 = 72,350.88 : x
  2. Step 2: Convert to fraction form
    147,226.47/220,860.96 = 72,350.88/x
  3. Step 3: Cross multiply
    147,226.47x = 220,860.96 × 72,350.88
  4. Step 4: Simplify right side
    147,226.47x = 15,979,484,813.64
  5. Step 5: Solve for x
    x = 15,979,484,813.64/147,226.47
  6. Step 6: Final answer
    x = 108,536.77

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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.