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Finding the Fourth Proportional to 342,565.67, 472,741.55 and 189,614.39

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Solution

The fourth proportional to 342,565.67, 472,741.55 and 189,614.39 is: 261,668.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,565.67 : 472,741.55 = 189,614.39 : x
  2. Step 2: Convert to fraction form
    342,565.67/472,741.55 = 189,614.39/x
  3. Step 3: Cross multiply
    342,565.67x = 472,741.55 × 189,614.39
  4. Step 4: Simplify right side
    342,565.67x = 89,638,598,030.18
  5. Step 5: Solve for x
    x = 89,638,598,030.18/342,565.67
  6. Step 6: Final answer
    x = 261,668.36

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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.