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Finding the Fourth Proportional to 153,751.31, 230,693.57 and 82,590.92

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Solution

The fourth proportional to 153,751.31, 230,693.57 and 82,590.92 is: 123,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,751.31 : 230,693.57 = 82,590.92 : x
  2. Step 2: Convert to fraction form
    153,751.31/230,693.57 = 82,590.92/x
  3. Step 3: Cross multiply
    153,751.31x = 230,693.57 × 82,590.92
  4. Step 4: Simplify right side
    153,751.31x = 19,053,192,617.96
  5. Step 5: Solve for x
    x = 19,053,192,617.96/153,751.31
  6. Step 6: Final answer
    x = 123,922.15

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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.