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Finding the Fourth Proportional to 83,446.68, 124,425.76 and 74,173.80

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Solution

The fourth proportional to 83,446.68, 124,425.76 and 74,173.80 is: 110,599.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,446.68 : 124,425.76 = 74,173.80 : x
  2. Step 2: Convert to fraction form
    83,446.68/124,425.76 = 74,173.80/x
  3. Step 3: Cross multiply
    83,446.68x = 124,425.76 × 74,173.80
  4. Step 4: Simplify right side
    83,446.68x = 9,229,131,437.09
  5. Step 5: Solve for x
    x = 9,229,131,437.09/83,446.68
  6. Step 6: Final answer
    x = 110,599.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.