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Finding the Fourth Proportional to 88,512.40, 132,922.20 and 47,040.40

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Solution

The fourth proportional to 88,512.40, 132,922.20 and 47,040.40 is: 70,642.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,512.40 : 132,922.20 = 47,040.40 : x
  2. Step 2: Convert to fraction form
    88,512.40/132,922.20 = 47,040.40/x
  3. Step 3: Cross multiply
    88,512.40x = 132,922.20 × 47,040.40
  4. Step 4: Simplify right side
    88,512.40x = 6,252,713,456.88
  5. Step 5: Solve for x
    x = 6,252,713,456.88/88,512.40
  6. Step 6: Final answer
    x = 70,642.23

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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.