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Finding the Fourth Proportional to 80,788.68, 121,207.72 and 41,373.68

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Solution

The fourth proportional to 80,788.68, 121,207.72 and 41,373.68 is: 62,073.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,788.68 : 121,207.72 = 41,373.68 : x
  2. Step 2: Convert to fraction form
    80,788.68/121,207.72 = 41,373.68/x
  3. Step 3: Cross multiply
    80,788.68x = 121,207.72 × 41,373.68
  4. Step 4: Simplify right side
    80,788.68x = 5,014,809,420.81
  5. Step 5: Solve for x
    x = 5,014,809,420.81/80,788.68
  6. Step 6: Final answer
    x = 62,073.17

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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.