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Finding the Fourth Proportional to 342,713.75, 472,946.60 and 191,839.91

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Solution

The fourth proportional to 342,713.75, 472,946.60 and 191,839.91 is: 264,739.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,713.75 : 472,946.60 = 191,839.91 : x
  2. Step 2: Convert to fraction form
    342,713.75/472,946.60 = 191,839.91/x
  3. Step 3: Cross multiply
    342,713.75x = 472,946.60 × 191,839.91
  4. Step 4: Simplify right side
    342,713.75x = 90,730,032,219.61
  5. Step 5: Solve for x
    x = 90,730,032,219.61/342,713.75
  6. Step 6: Final answer
    x = 264,739.98

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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.