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Finding the Fourth Proportional to 283,601.50, 425,470.14 and 81,200.42

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Solution

The fourth proportional to 283,601.50, 425,470.14 and 81,200.42 is: 121,820.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,601.50 : 425,470.14 = 81,200.42 : x
  2. Step 2: Convert to fraction form
    283,601.50/425,470.14 = 81,200.42/x
  3. Step 3: Cross multiply
    283,601.50x = 425,470.14 × 81,200.42
  4. Step 4: Simplify right side
    283,601.50x = 34,548,354,065.46
  5. Step 5: Solve for x
    x = 34,548,354,065.46/283,601.50
  6. Step 6: Final answer
    x = 121,820.07

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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.