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Finding the Fourth Proportional to 95,745.38, 143,638.71 and 47,740.16

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Solution

The fourth proportional to 95,745.38, 143,638.71 and 47,740.16 is: 71,620.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,745.38 : 143,638.71 = 47,740.16 : x
  2. Step 2: Convert to fraction form
    95,745.38/143,638.71 = 47,740.16/x
  3. Step 3: Cross multiply
    95,745.38x = 143,638.71 × 47,740.16
  4. Step 4: Simplify right side
    95,745.38x = 6,857,334,997.59
  5. Step 5: Solve for x
    x = 6,857,334,997.59/95,745.38
  6. Step 6: Final answer
    x = 71,620.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.