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Finding the Fourth Proportional to 103,856.96, 155,673.12 and 41,458.88

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Solution

The fourth proportional to 103,856.96, 155,673.12 and 41,458.88 is: 62,143.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,856.96 : 155,673.12 = 41,458.88 : x
  2. Step 2: Convert to fraction form
    103,856.96/155,673.12 = 41,458.88/x
  3. Step 3: Cross multiply
    103,856.96x = 155,673.12 × 41,458.88
  4. Step 4: Simplify right side
    103,856.96x = 6,454,033,201.31
  5. Step 5: Solve for x
    x = 6,454,033,201.31/103,856.96
  6. Step 6: Final answer
    x = 62,143.48

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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.