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Finding the Fourth Proportional to 83,193.40, 124,868.40 and 43,778.80

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Solution

The fourth proportional to 83,193.40, 124,868.40 and 43,778.80 is: 65,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,193.40 : 124,868.40 = 43,778.80 : x
  2. Step 2: Convert to fraction form
    83,193.40/124,868.40 = 43,778.80/x
  3. Step 3: Cross multiply
    83,193.40x = 124,868.40 × 43,778.80
  4. Step 4: Simplify right side
    83,193.40x = 5,466,588,709.92
  5. Step 5: Solve for x
    x = 5,466,588,709.92/83,193.40
  6. Step 6: Final answer
    x = 65,709.40

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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.