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Finding the Fourth Proportional to 169,321.50, 233,670.96 and 93,870

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Solution

The fourth proportional to 169,321.50, 233,670.96 and 93,870 is: 129,544.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,321.50 : 233,670.96 = 93,870 : x
  2. Step 2: Convert to fraction form
    169,321.50/233,670.96 = 93,870/x
  3. Step 3: Cross multiply
    169,321.50x = 233,670.96 × 93,870
  4. Step 4: Simplify right side
    169,321.50x = 21,934,693,015.20
  5. Step 5: Solve for x
    x = 21,934,693,015.20/169,321.50
  6. Step 6: Final answer
    x = 129,544.64

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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.