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Finding the Fourth Proportional to 107,217.80, 160,826.70 and 65,745.80

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Solution

The fourth proportional to 107,217.80, 160,826.70 and 65,745.80 is: 98,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,217.80 : 160,826.70 = 65,745.80 : x
  2. Step 2: Convert to fraction form
    107,217.80/160,826.70 = 65,745.80/x
  3. Step 3: Cross multiply
    107,217.80x = 160,826.70 × 65,745.80
  4. Step 4: Simplify right side
    107,217.80x = 10,573,680,052.86
  5. Step 5: Solve for x
    x = 10,573,680,052.86/107,217.80
  6. Step 6: Final answer
    x = 98,618.70

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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.