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Finding the Fourth Proportional to 268,483.22, 402,723.02 and 91,115.10

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Solution

The fourth proportional to 268,483.22, 402,723.02 and 91,115.10 is: 136,672.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,483.22 : 402,723.02 = 91,115.10 : x
  2. Step 2: Convert to fraction form
    268,483.22/402,723.02 = 91,115.10/x
  3. Step 3: Cross multiply
    268,483.22x = 402,723.02 × 91,115.10
  4. Step 4: Simplify right side
    268,483.22x = 36,694,148,239.60
  5. Step 5: Solve for x
    x = 36,694,148,239.60/268,483.22
  6. Step 6: Final answer
    x = 136,672.04

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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.