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Finding the Fourth Proportional to 84,897.87, 117,153.92 and 47,170.83

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Solution

The fourth proportional to 84,897.87, 117,153.92 and 47,170.83 is: 65,092.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,897.87 : 117,153.92 = 47,170.83 : x
  2. Step 2: Convert to fraction form
    84,897.87/117,153.92 = 47,170.83/x
  3. Step 3: Cross multiply
    84,897.87x = 117,153.92 × 47,170.83
  4. Step 4: Simplify right side
    84,897.87x = 5,526,247,408.30
  5. Step 5: Solve for x
    x = 5,526,247,408.30/84,897.87
  6. Step 6: Final answer
    x = 65,092.89

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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.