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Finding the Fourth Proportional to 83,269.80, 124,540.20 and 74,448.90

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Solution

The fourth proportional to 83,269.80, 124,540.20 and 74,448.90 is: 111,347.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,269.80 : 124,540.20 = 74,448.90 : x
  2. Step 2: Convert to fraction form
    83,269.80/124,540.20 = 74,448.90/x
  3. Step 3: Cross multiply
    83,269.80x = 124,540.20 × 74,448.90
  4. Step 4: Simplify right side
    83,269.80x = 9,271,880,895.78
  5. Step 5: Solve for x
    x = 9,271,880,895.78/83,269.80
  6. Step 6: Final answer
    x = 111,347.46

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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.