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Finding the Fourth Proportional to 268,544.78, 402,730.94 and 88,589.76

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Solution

The fourth proportional to 268,544.78, 402,730.94 and 88,589.76 is: 132,856.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,544.78 : 402,730.94 = 88,589.76 : x
  2. Step 2: Convert to fraction form
    268,544.78/402,730.94 = 88,589.76/x
  3. Step 3: Cross multiply
    268,544.78x = 402,730.94 × 88,589.76
  4. Step 4: Simplify right side
    268,544.78x = 35,677,837,319.17
  5. Step 5: Solve for x
    x = 35,677,837,319.17/268,544.78
  6. Step 6: Final answer
    x = 132,856.19

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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.