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Finding the Fourth Proportional to 144,337.62, 199,186.65 and 80,674.05

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Solution

The fourth proportional to 144,337.62, 199,186.65 and 80,674.05 is: 111,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,337.62 : 199,186.65 = 80,674.05 : x
  2. Step 2: Convert to fraction form
    144,337.62/199,186.65 = 80,674.05/x
  3. Step 3: Cross multiply
    144,337.62x = 199,186.65 × 80,674.05
  4. Step 4: Simplify right side
    144,337.62x = 16,069,193,761.43
  5. Step 5: Solve for x
    x = 16,069,193,761.43/144,337.62
  6. Step 6: Final answer
    x = 111,330.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.