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Finding the Fourth Proportional to 306,158.14, 459,245.85 and 84,542.14

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Solution

The fourth proportional to 306,158.14, 459,245.85 and 84,542.14 is: 126,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,158.14 : 459,245.85 = 84,542.14 : x
  2. Step 2: Convert to fraction form
    306,158.14/459,245.85 = 84,542.14/x
  3. Step 3: Cross multiply
    306,158.14x = 459,245.85 × 84,542.14
  4. Step 4: Simplify right side
    306,158.14x = 38,825,626,945.12
  5. Step 5: Solve for x
    x = 38,825,626,945.12/306,158.14
  6. Step 6: Final answer
    x = 126,815.60

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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.