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Finding the Fourth Proportional to 159,841.12, 220,565.04 and 88,216.52

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Solution

The fourth proportional to 159,841.12, 220,565.04 and 88,216.52 is: 121,730.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,841.12 : 220,565.04 = 88,216.52 : x
  2. Step 2: Convert to fraction form
    159,841.12/220,565.04 = 88,216.52/x
  3. Step 3: Cross multiply
    159,841.12x = 220,565.04 × 88,216.52
  4. Step 4: Simplify right side
    159,841.12x = 19,457,479,159.64
  5. Step 5: Solve for x
    x = 19,457,479,159.64/159,841.12
  6. Step 6: Final answer
    x = 121,730.12

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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.