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Finding the Fourth Proportional to 73,117.40, 109,676.10 and 36,253.40

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Solution

The fourth proportional to 73,117.40, 109,676.10 and 36,253.40 is: 54,380.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,117.40 : 109,676.10 = 36,253.40 : x
  2. Step 2: Convert to fraction form
    73,117.40/109,676.10 = 36,253.40/x
  3. Step 3: Cross multiply
    73,117.40x = 109,676.10 × 36,253.40
  4. Step 4: Simplify right side
    73,117.40x = 3,976,131,523.74
  5. Step 5: Solve for x
    x = 3,976,131,523.74/73,117.40
  6. Step 6: Final answer
    x = 54,380.10

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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.