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Finding the Fourth Proportional to 88,170.88, 121,676.71 and 47,885.43

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Solution

The fourth proportional to 88,170.88, 121,676.71 and 47,885.43 is: 66,082.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,170.88 : 121,676.71 = 47,885.43 : x
  2. Step 2: Convert to fraction form
    88,170.88/121,676.71 = 47,885.43/x
  3. Step 3: Cross multiply
    88,170.88x = 121,676.71 × 47,885.43
  4. Step 4: Simplify right side
    88,170.88x = 5,826,541,186.59
  5. Step 5: Solve for x
    x = 5,826,541,186.59/88,170.88
  6. Step 6: Final answer
    x = 66,082.38

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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.