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Finding the Fourth Proportional to 73,581.48, 110,119.38 and 45,490.68

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Solution

The fourth proportional to 73,581.48, 110,119.38 and 45,490.68 is: 68,079.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,581.48 : 110,119.38 = 45,490.68 : x
  2. Step 2: Convert to fraction form
    73,581.48/110,119.38 = 45,490.68/x
  3. Step 3: Cross multiply
    73,581.48x = 110,119.38 × 45,490.68
  4. Step 4: Simplify right side
    73,581.48x = 5,009,405,477.38
  5. Step 5: Solve for x
    x = 5,009,405,477.38/73,581.48
  6. Step 6: Final answer
    x = 68,079.71

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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.