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Finding the Fourth Proportional to 71,636.88, 107,418.39 and 32,160.12

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Solution

The fourth proportional to 71,636.88, 107,418.39 and 32,160.12 is: 48,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,636.88 : 107,418.39 = 32,160.12 : x
  2. Step 2: Convert to fraction form
    71,636.88/107,418.39 = 32,160.12/x
  3. Step 3: Cross multiply
    71,636.88x = 107,418.39 × 32,160.12
  4. Step 4: Simplify right side
    71,636.88x = 3,454,588,312.61
  5. Step 5: Solve for x
    x = 3,454,588,312.61/71,636.88
  6. Step 6: Final answer
    x = 48,223.60

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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.