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Finding the Fourth Proportional to 80,655.40, 113,034.20 and 80,655.40

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Solution

The fourth proportional to 80,655.40, 113,034.20 and 80,655.40 is: 113,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,655.40 : 113,034.20 = 80,655.40 : x
  2. Step 2: Convert to fraction form
    80,655.40/113,034.20 = 80,655.40/x
  3. Step 3: Cross multiply
    80,655.40x = 113,034.20 × 80,655.40
  4. Step 4: Simplify right side
    80,655.40x = 9,116,818,614.68
  5. Step 5: Solve for x
    x = 9,116,818,614.68/80,655.40
  6. Step 6: Final answer
    x = 113,034.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.