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Finding the Fourth Proportional to 85,211.88, 117,593.22 and 46,972.80

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Solution

The fourth proportional to 85,211.88, 117,593.22 and 46,972.80 is: 64,822.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,211.88 : 117,593.22 = 46,972.80 : x
  2. Step 2: Convert to fraction form
    85,211.88/117,593.22 = 46,972.80/x
  3. Step 3: Cross multiply
    85,211.88x = 117,593.22 × 46,972.80
  4. Step 4: Simplify right side
    85,211.88x = 5,523,682,804.42
  5. Step 5: Solve for x
    x = 5,523,682,804.42/85,211.88
  6. Step 6: Final answer
    x = 64,822.92

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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.