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Finding the Fourth Proportional to 342,182.48, 472,214.88 and 189,230.97

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Solution

The fourth proportional to 342,182.48, 472,214.88 and 189,230.97 is: 261,140.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,182.48 : 472,214.88 = 189,230.97 : x
  2. Step 2: Convert to fraction form
    342,182.48/472,214.88 = 189,230.97/x
  3. Step 3: Cross multiply
    342,182.48x = 472,214.88 × 189,230.97
  4. Step 4: Simplify right side
    342,182.48x = 89,357,677,577.33
  5. Step 5: Solve for x
    x = 89,357,677,577.33/342,182.48
  6. Step 6: Final answer
    x = 261,140.42

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1.5x scale

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.