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Finding the Fourth Proportional to 342,642.59, 472,852.37 and 187,591.29

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Solution

The fourth proportional to 342,642.59, 472,852.37 and 187,591.29 is: 258,879.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,642.59 : 472,852.37 = 187,591.29 : x
  2. Step 2: Convert to fraction form
    342,642.59/472,852.37 = 187,591.29/x
  3. Step 3: Cross multiply
    342,642.59x = 472,852.37 × 187,591.29
  4. Step 4: Simplify right side
    342,642.59x = 88,702,986,719.97
  5. Step 5: Solve for x
    x = 88,702,986,719.97/342,642.59
  6. Step 6: Final answer
    x = 258,879.05

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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.