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Finding the Fourth Proportional to 83,304.40, 124,805.40 and 48,139.60

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Solution

The fourth proportional to 83,304.40, 124,805.40 and 48,139.60 is: 72,122.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,304.40 : 124,805.40 = 48,139.60 : x
  2. Step 2: Convert to fraction form
    83,304.40/124,805.40 = 48,139.60/x
  3. Step 3: Cross multiply
    83,304.40x = 124,805.40 × 48,139.60
  4. Step 4: Simplify right side
    83,304.40x = 6,008,082,033.84
  5. Step 5: Solve for x
    x = 6,008,082,033.84/83,304.40
  6. Step 6: Final answer
    x = 72,122.03

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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.