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Finding the Fourth Proportional to 83,328.62, 114,993.87 and 45,602.78

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Solution

The fourth proportional to 83,328.62, 114,993.87 and 45,602.78 is: 62,932.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,328.62 : 114,993.87 = 45,602.78 : x
  2. Step 2: Convert to fraction form
    83,328.62/114,993.87 = 45,602.78/x
  3. Step 3: Cross multiply
    83,328.62x = 114,993.87 × 45,602.78
  4. Step 4: Simplify right side
    83,328.62x = 5,244,040,154.96
  5. Step 5: Solve for x
    x = 5,244,040,154.96/83,328.62
  6. Step 6: Final answer
    x = 62,932.04

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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.