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Finding the Fourth Proportional to 85,189.44, 117,446.72 and 59,661.44

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Solution

The fourth proportional to 85,189.44, 117,446.72 and 59,661.44 is: 82,252.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,189.44 : 117,446.72 = 59,661.44 : x
  2. Step 2: Convert to fraction form
    85,189.44/117,446.72 = 59,661.44/x
  3. Step 3: Cross multiply
    85,189.44x = 117,446.72 × 59,661.44
  4. Step 4: Simplify right side
    85,189.44x = 7,007,040,438.48
  5. Step 5: Solve for x
    x = 7,007,040,438.48/85,189.44
  6. Step 6: Final answer
    x = 82,252.45

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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.