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Finding the Fourth Proportional to 155,599.56, 214,728.68 and 88,535.88

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Solution

The fourth proportional to 155,599.56, 214,728.68 and 88,535.88 is: 122,180.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,599.56 : 214,728.68 = 88,535.88 : x
  2. Step 2: Convert to fraction form
    155,599.56/214,728.68 = 88,535.88/x
  3. Step 3: Cross multiply
    155,599.56x = 214,728.68 × 88,535.88
  4. Step 4: Simplify right side
    155,599.56x = 19,011,192,645.04
  5. Step 5: Solve for x
    x = 19,011,192,645.04/155,599.56
  6. Step 6: Final answer
    x = 122,180.25

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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.