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Finding the Fourth Proportional to 268,106.55, 402,115.55 and 88,194.21

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Solution

The fourth proportional to 268,106.55, 402,115.55 and 88,194.21 is: 132,276.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,106.55 : 402,115.55 = 88,194.21 : x
  2. Step 2: Convert to fraction form
    268,106.55/402,115.55 = 88,194.21/x
  3. Step 3: Cross multiply
    268,106.55x = 402,115.55 × 88,194.21
  4. Step 4: Simplify right side
    268,106.55x = 35,464,263,260.97
  5. Step 5: Solve for x
    x = 35,464,263,260.97/268,106.55
  6. Step 6: Final answer
    x = 132,276.75

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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.