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Finding the Fourth Proportional to 161,761.52, 223,231.78 and 93,818.76

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Solution

The fourth proportional to 161,761.52, 223,231.78 and 93,818.76 is: 129,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,761.52 : 223,231.78 = 93,818.76 : x
  2. Step 2: Convert to fraction form
    161,761.52/223,231.78 = 93,818.76/x
  3. Step 3: Cross multiply
    161,761.52x = 223,231.78 × 93,818.76
  4. Step 4: Simplify right side
    161,761.52x = 20,943,328,792.19
  5. Step 5: Solve for x
    x = 20,943,328,792.19/161,761.52
  6. Step 6: Final answer
    x = 129,470.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.