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Finding the Fourth Proportional to 101,348.80, 152,023.20 and 82,916.80

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Solution

The fourth proportional to 101,348.80, 152,023.20 and 82,916.80 is: 124,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,348.80 : 152,023.20 = 82,916.80 : x
  2. Step 2: Convert to fraction form
    101,348.80/152,023.20 = 82,916.80/x
  3. Step 3: Cross multiply
    101,348.80x = 152,023.20 × 82,916.80
  4. Step 4: Simplify right side
    101,348.80x = 12,605,277,269.76
  5. Step 5: Solve for x
    x = 12,605,277,269.76/101,348.80
  6. Step 6: Final answer
    x = 124,375.20

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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.