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Finding the Fourth Proportional to 83,426.46, 125,156.04 and 30,836.40

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Solution

The fourth proportional to 83,426.46, 125,156.04 and 30,836.40 is: 46,260.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,426.46 : 125,156.04 = 30,836.40 : x
  2. Step 2: Convert to fraction form
    83,426.46/125,156.04 = 30,836.40/x
  3. Step 3: Cross multiply
    83,426.46x = 125,156.04 × 30,836.40
  4. Step 4: Simplify right side
    83,426.46x = 3,859,361,711.86
  5. Step 5: Solve for x
    x = 3,859,361,711.86/83,426.46
  6. Step 6: Final answer
    x = 46,260.64

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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.