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Finding the Fourth Proportional to 123,716.52, 185,574.69 and 43,813.08

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Solution

The fourth proportional to 123,716.52, 185,574.69 and 43,813.08 is: 65,719.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,716.52 : 185,574.69 = 43,813.08 : x
  2. Step 2: Convert to fraction form
    123,716.52/185,574.69 = 43,813.08/x
  3. Step 3: Cross multiply
    123,716.52x = 185,574.69 × 43,813.08
  4. Step 4: Simplify right side
    123,716.52x = 8,130,598,738.95
  5. Step 5: Solve for x
    x = 8,130,598,738.95/123,716.52
  6. Step 6: Final answer
    x = 65,719.59

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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.