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Finding the Fourth Proportional to 121,281.56, 181,856.73 and 41,295.68

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Solution

The fourth proportional to 121,281.56, 181,856.73 and 41,295.68 is: 61,921.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,281.56 : 181,856.73 = 41,295.68 : x
  2. Step 2: Convert to fraction form
    121,281.56/181,856.73 = 41,295.68/x
  3. Step 3: Cross multiply
    121,281.56x = 181,856.73 × 41,295.68
  4. Step 4: Simplify right side
    121,281.56x = 7,509,897,327.93
  5. Step 5: Solve for x
    x = 7,509,897,327.93/121,281.56
  6. Step 6: Final answer
    x = 61,921.18

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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.