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Finding the Fourth Proportional to 169,909.74, 234,481.47 and 93,434.70

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Solution

The fourth proportional to 169,909.74, 234,481.47 and 93,434.70 is: 128,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,909.74 : 234,481.47 = 93,434.70 : x
  2. Step 2: Convert to fraction form
    169,909.74/234,481.47 = 93,434.70/x
  3. Step 3: Cross multiply
    169,909.74x = 234,481.47 × 93,434.70
  4. Step 4: Simplify right side
    169,909.74x = 21,908,705,805.01
  5. Step 5: Solve for x
    x = 21,908,705,805.01/169,909.74
  6. Step 6: Final answer
    x = 128,943.20

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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.