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Finding the Fourth Proportional to 264,326.55, 396,531.27 and 86,793.18

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Solution

The fourth proportional to 264,326.55, 396,531.27 and 86,793.18 is: 130,203.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,326.55 : 396,531.27 = 86,793.18 : x
  2. Step 2: Convert to fraction form
    264,326.55/396,531.27 = 86,793.18/x
  3. Step 3: Cross multiply
    264,326.55x = 396,531.27 × 86,793.18
  4. Step 4: Simplify right side
    264,326.55x = 34,416,209,892.74
  5. Step 5: Solve for x
    x = 34,416,209,892.74/264,326.55
  6. Step 6: Final answer
    x = 130,203.38

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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.