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Finding the Fourth Proportional to 110,392.20, 152,003.88 and 83,207.79

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Solution

The fourth proportional to 110,392.20, 152,003.88 and 83,207.79 is: 114,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,392.20 : 152,003.88 = 83,207.79 : x
  2. Step 2: Convert to fraction form
    110,392.20/152,003.88 = 83,207.79/x
  3. Step 3: Cross multiply
    110,392.20x = 152,003.88 × 83,207.79
  4. Step 4: Simplify right side
    110,392.20x = 12,647,906,926.23
  5. Step 5: Solve for x
    x = 12,647,906,926.23/110,392.20
  6. Step 6: Final answer
    x = 114,572.47

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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.