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Finding the Fourth Proportional to 79,862.40, 119,793.60 and 48,758.40

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Solution

The fourth proportional to 79,862.40, 119,793.60 and 48,758.40 is: 73,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,862.40 : 119,793.60 = 48,758.40 : x
  2. Step 2: Convert to fraction form
    79,862.40/119,793.60 = 48,758.40/x
  3. Step 3: Cross multiply
    79,862.40x = 119,793.60 × 48,758.40
  4. Step 4: Simplify right side
    79,862.40x = 5,840,944,266.24
  5. Step 5: Solve for x
    x = 5,840,944,266.24/79,862.40
  6. Step 6: Final answer
    x = 73,137.60

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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.