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Finding the Fourth Proportional to 107,169.38, 147,859.73 and 61,841.37

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Solution

The fourth proportional to 107,169.38, 147,859.73 and 61,841.37 is: 85,321.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,169.38 : 147,859.73 = 61,841.37 : x
  2. Step 2: Convert to fraction form
    107,169.38/147,859.73 = 61,841.37/x
  3. Step 3: Cross multiply
    107,169.38x = 147,859.73 × 61,841.37
  4. Step 4: Simplify right side
    107,169.38x = 9,143,848,748.20
  5. Step 5: Solve for x
    x = 9,143,848,748.20/107,169.38
  6. Step 6: Final answer
    x = 85,321.47

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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.