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Finding the Fourth Proportional to 116,124.40, 173,846.40 and 86,672.80

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Solution

The fourth proportional to 116,124.40, 173,846.40 and 86,672.80 is: 129,755.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,124.40 : 173,846.40 = 86,672.80 : x
  2. Step 2: Convert to fraction form
    116,124.40/173,846.40 = 86,672.80/x
  3. Step 3: Cross multiply
    116,124.40x = 173,846.40 × 86,672.80
  4. Step 4: Simplify right side
    116,124.40x = 15,067,754,257.92
  5. Step 5: Solve for x
    x = 15,067,754,257.92/116,124.40
  6. Step 6: Final answer
    x = 129,755.28

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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.