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Finding the Fourth Proportional to 152,314.78, 228,526.84 and 68,067.90

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Solution

The fourth proportional to 152,314.78, 228,526.84 and 68,067.90 is: 102,126.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,314.78 : 228,526.84 = 68,067.90 : x
  2. Step 2: Convert to fraction form
    152,314.78/228,526.84 = 68,067.90/x
  3. Step 3: Cross multiply
    152,314.78x = 228,526.84 × 68,067.90
  4. Step 4: Simplify right side
    152,314.78x = 15,555,342,092.44
  5. Step 5: Solve for x
    x = 15,555,342,092.44/152,314.78
  6. Step 6: Final answer
    x = 102,126.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.