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Finding the Fourth Proportional to 110,671.62, 152,711.42 and 62,919.69

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Solution

The fourth proportional to 110,671.62, 152,711.42 and 62,919.69 is: 86,820.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,671.62 : 152,711.42 = 62,919.69 : x
  2. Step 2: Convert to fraction form
    110,671.62/152,711.42 = 62,919.69/x
  3. Step 3: Cross multiply
    110,671.62x = 152,711.42 × 62,919.69
  4. Step 4: Simplify right side
    110,671.62x = 9,608,555,205.86
  5. Step 5: Solve for x
    x = 9,608,555,205.86/110,671.62
  6. Step 6: Final answer
    x = 86,820.41

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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.