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Finding the Fourth Proportional to 92,549.71, 138,824.52 and 30,220.21

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Solution

The fourth proportional to 92,549.71, 138,824.52 and 30,220.21 is: 45,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,549.71 : 138,824.52 = 30,220.21 : x
  2. Step 2: Convert to fraction form
    92,549.71/138,824.52 = 30,220.21/x
  3. Step 3: Cross multiply
    92,549.71x = 138,824.52 × 30,220.21
  4. Step 4: Simplify right side
    92,549.71x = 4,195,306,147.55
  5. Step 5: Solve for x
    x = 4,195,306,147.55/92,549.71
  6. Step 6: Final answer
    x = 45,330.30

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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.