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Finding the Fourth Proportional to 342,716.30, 472,954.38 and 187,681.22

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Solution

The fourth proportional to 342,716.30, 472,954.38 and 187,681.22 is: 259,003.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,716.30 : 472,954.38 = 187,681.22 : x
  2. Step 2: Convert to fraction form
    342,716.30/472,954.38 = 187,681.22/x
  3. Step 3: Cross multiply
    342,716.30x = 472,954.38 × 187,681.22
  4. Step 4: Simplify right side
    342,716.30x = 88,764,655,042.74
  5. Step 5: Solve for x
    x = 88,764,655,042.74/342,716.30
  6. Step 6: Final answer
    x = 259,003.31

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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.