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Finding the Fourth Proportional to 117,515.39, 162,170.30 and 63,799.31

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Solution

The fourth proportional to 117,515.39, 162,170.30 and 63,799.31 is: 88,042.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,515.39 : 162,170.30 = 63,799.31 : x
  2. Step 2: Convert to fraction form
    117,515.39/162,170.30 = 63,799.31/x
  3. Step 3: Cross multiply
    117,515.39x = 162,170.30 × 63,799.31
  4. Step 4: Simplify right side
    117,515.39x = 10,346,353,807.42
  5. Step 5: Solve for x
    x = 10,346,353,807.42/117,515.39
  6. Step 6: Final answer
    x = 88,042.55

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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.