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Finding the Fourth Proportional to 85,251.28, 117,647.04 and 49,462.48

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Solution

The fourth proportional to 85,251.28, 117,647.04 and 49,462.48 is: 68,258.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,251.28 : 117,647.04 = 49,462.48 : x
  2. Step 2: Convert to fraction form
    85,251.28/117,647.04 = 49,462.48/x
  3. Step 3: Cross multiply
    85,251.28x = 117,647.04 × 49,462.48
  4. Step 4: Simplify right side
    85,251.28x = 5,819,114,363.06
  5. Step 5: Solve for x
    x = 5,819,114,363.06/85,251.28
  6. Step 6: Final answer
    x = 68,258.38

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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.