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Finding the Fourth Proportional to 85,311.16, 117,738.54 and 47,598.52

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Solution

The fourth proportional to 85,311.16, 117,738.54 and 47,598.52 is: 65,691.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,311.16 : 117,738.54 = 47,598.52 : x
  2. Step 2: Convert to fraction form
    85,311.16/117,738.54 = 47,598.52/x
  3. Step 3: Cross multiply
    85,311.16x = 117,738.54 × 47,598.52
  4. Step 4: Simplify right side
    85,311.16x = 5,604,180,250.96
  5. Step 5: Solve for x
    x = 5,604,180,250.96/85,311.16
  6. Step 6: Final answer
    x = 65,691.06

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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.