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Finding the Fourth Proportional to 342,714.29, 472,951.62 and 187,679.23

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Solution

The fourth proportional to 342,714.29, 472,951.62 and 187,679.23 is: 259,000.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,714.29 : 472,951.62 = 187,679.23 : x
  2. Step 2: Convert to fraction form
    342,714.29/472,951.62 = 187,679.23/x
  3. Step 3: Cross multiply
    342,714.29x = 472,951.62 × 187,679.23
  4. Step 4: Simplify right side
    342,714.29x = 88,763,194,950.40
  5. Step 5: Solve for x
    x = 88,763,194,950.40/342,714.29
  6. Step 6: Final answer
    x = 259,000.57

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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.