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Finding the Fourth Proportional to 124,032.80, 186,049.20 and 74,266.40

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Solution

The fourth proportional to 124,032.80, 186,049.20 and 74,266.40 is: 111,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,032.80 : 186,049.20 = 74,266.40 : x
  2. Step 2: Convert to fraction form
    124,032.80/186,049.20 = 74,266.40/x
  3. Step 3: Cross multiply
    124,032.80x = 186,049.20 × 74,266.40
  4. Step 4: Simplify right side
    124,032.80x = 13,817,204,306.88
  5. Step 5: Solve for x
    x = 13,817,204,306.88/124,032.80
  6. Step 6: Final answer
    x = 111,399.60

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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.