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Finding the Fourth Proportional to 80,567.31, 120,736.40 and 59,340.45

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Solution

The fourth proportional to 80,567.31, 120,736.40 and 59,340.45 is: 88,926.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,567.31 : 120,736.40 = 59,340.45 : x
  2. Step 2: Convert to fraction form
    80,567.31/120,736.40 = 59,340.45/x
  3. Step 3: Cross multiply
    80,567.31x = 120,736.40 × 59,340.45
  4. Step 4: Simplify right side
    80,567.31x = 7,164,552,010.68
  5. Step 5: Solve for x
    x = 7,164,552,010.68/80,567.31
  6. Step 6: Final answer
    x = 88,926.29

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1.5x scale

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.