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Finding the Fourth Proportional to 159,854.64, 220,598.19 and 88,234.65

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Solution

The fourth proportional to 159,854.64, 220,598.19 and 88,234.65 is: 121,763.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,854.64 : 220,598.19 = 88,234.65 : x
  2. Step 2: Convert to fraction form
    159,854.64/220,598.19 = 88,234.65/x
  3. Step 3: Cross multiply
    159,854.64x = 220,598.19 × 88,234.65
  4. Step 4: Simplify right side
    159,854.64x = 19,464,404,085.28
  5. Step 5: Solve for x
    x = 19,464,404,085.28/159,854.64
  6. Step 6: Final answer
    x = 121,763.15

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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.