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Finding the Fourth Proportional to 163,046.20, 244,569.30 and 74,472.70

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Solution

The fourth proportional to 163,046.20, 244,569.30 and 74,472.70 is: 111,709.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,046.20 : 244,569.30 = 74,472.70 : x
  2. Step 2: Convert to fraction form
    163,046.20/244,569.30 = 74,472.70/x
  3. Step 3: Cross multiply
    163,046.20x = 244,569.30 × 74,472.70
  4. Step 4: Simplify right side
    163,046.20x = 18,213,736,108.11
  5. Step 5: Solve for x
    x = 18,213,736,108.11/163,046.20
  6. Step 6: Final answer
    x = 111,709.05

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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.