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Finding the Fourth Proportional to 85,601.68, 118,127.66 and 47,358.95

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Solution

The fourth proportional to 85,601.68, 118,127.66 and 47,358.95 is: 65,353.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,601.68 : 118,127.66 = 47,358.95 : x
  2. Step 2: Convert to fraction form
    85,601.68/118,127.66 = 47,358.95/x
  3. Step 3: Cross multiply
    85,601.68x = 118,127.66 × 47,358.95
  4. Step 4: Simplify right side
    85,601.68x = 5,594,401,116.12
  5. Step 5: Solve for x
    x = 5,594,401,116.12/85,601.68
  6. Step 6: Final answer
    x = 65,353.87

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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.