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Finding the Fourth Proportional to 123,349.68, 170,226.69 and 75,593.81

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Solution

The fourth proportional to 123,349.68, 170,226.69 and 75,593.81 is: 104,321.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,349.68 : 170,226.69 = 75,593.81 : x
  2. Step 2: Convert to fraction form
    123,349.68/170,226.69 = 75,593.81/x
  3. Step 3: Cross multiply
    123,349.68x = 170,226.69 × 75,593.81
  4. Step 4: Simplify right side
    123,349.68x = 12,868,082,831.69
  5. Step 5: Solve for x
    x = 12,868,082,831.69/123,349.68
  6. Step 6: Final answer
    x = 104,321.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.