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Finding the Fourth Proportional to 83,352.33, 124,985.97 and 27,156.30

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Solution

The fourth proportional to 83,352.33, 124,985.97 and 27,156.30 is: 40,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,352.33 : 124,985.97 = 27,156.30 : x
  2. Step 2: Convert to fraction form
    83,352.33/124,985.97 = 27,156.30/x
  3. Step 3: Cross multiply
    83,352.33x = 124,985.97 × 27,156.30
  4. Step 4: Simplify right side
    83,352.33x = 3,394,156,497.11
  5. Step 5: Solve for x
    x = 3,394,156,497.11/83,352.33
  6. Step 6: Final answer
    x = 40,720.60

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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.