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Finding the Fourth Proportional to 322,925.20, 484,387.80 and 112,513.93

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Solution

The fourth proportional to 322,925.20, 484,387.80 and 112,513.93 is: 168,770.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,925.20 : 484,387.80 = 112,513.93 : x
  2. Step 2: Convert to fraction form
    322,925.20/484,387.80 = 112,513.93/x
  3. Step 3: Cross multiply
    322,925.20x = 484,387.80 × 112,513.93
  4. Step 4: Simplify right side
    322,925.20x = 54,500,375,022.05
  5. Step 5: Solve for x
    x = 54,500,375,022.05/322,925.20
  6. Step 6: Final answer
    x = 168,770.90

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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.