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Finding the Fourth Proportional to 123,667.70, 185,508.73 and 34,913.78

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Solution

The fourth proportional to 123,667.70, 185,508.73 and 34,913.78 is: 52,372.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,667.70 : 185,508.73 = 34,913.78 : x
  2. Step 2: Convert to fraction form
    123,667.70/185,508.73 = 34,913.78/x
  3. Step 3: Cross multiply
    123,667.70x = 185,508.73 × 34,913.78
  4. Step 4: Simplify right side
    123,667.70x = 6,476,810,987.30
  5. Step 5: Solve for x
    x = 6,476,810,987.30/123,667.70
  6. Step 6: Final answer
    x = 52,372.70

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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.