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Finding the Fourth Proportional to 80,877.80, 113,462.20 and 80,877.80

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Solution

The fourth proportional to 80,877.80, 113,462.20 and 80,877.80 is: 113,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,877.80 : 113,462.20 = 80,877.80 : x
  2. Step 2: Convert to fraction form
    80,877.80/113,462.20 = 80,877.80/x
  3. Step 3: Cross multiply
    80,877.80x = 113,462.20 × 80,877.80
  4. Step 4: Simplify right side
    80,877.80x = 9,176,573,119.16
  5. Step 5: Solve for x
    x = 9,176,573,119.16/80,877.80
  6. Step 6: Final answer
    x = 113,462.20

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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.