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Finding the Fourth Proportional to 169,909.80, 234,481.53 and 93,434.73

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Solution

The fourth proportional to 169,909.80, 234,481.53 and 93,434.73 is: 128,943.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,909.80 : 234,481.53 = 93,434.73 : x
  2. Step 2: Convert to fraction form
    169,909.80/234,481.53 = 93,434.73/x
  3. Step 3: Cross multiply
    169,909.80x = 234,481.53 × 93,434.73
  4. Step 4: Simplify right side
    169,909.80x = 21,908,718,445.54
  5. Step 5: Solve for x
    x = 21,908,718,445.54/169,909.80
  6. Step 6: Final answer
    x = 128,943.23

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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.