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Finding the Fourth Proportional to 342,695.88, 472,920.26 and 191,792.88

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Solution

The fourth proportional to 342,695.88, 472,920.26 and 191,792.88 is: 264,674.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,695.88 : 472,920.26 = 191,792.88 : x
  2. Step 2: Convert to fraction form
    342,695.88/472,920.26 = 191,792.88/x
  3. Step 3: Cross multiply
    342,695.88x = 472,920.26 × 191,792.88
  4. Step 4: Simplify right side
    342,695.88x = 90,702,737,716.78
  5. Step 5: Solve for x
    x = 90,702,737,716.78/342,695.88
  6. Step 6: Final answer
    x = 264,674.14

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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.