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Finding the Fourth Proportional to 552,463.72, 828,691.93 and 142,132.41

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Solution

The fourth proportional to 552,463.72, 828,691.93 and 142,132.41 is: 213,197.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,463.72 : 828,691.93 = 142,132.41 : x
  2. Step 2: Convert to fraction form
    552,463.72/828,691.93 = 142,132.41/x
  3. Step 3: Cross multiply
    552,463.72x = 828,691.93 × 142,132.41
  4. Step 4: Simplify right side
    552,463.72x = 117,783,981,158.45
  5. Step 5: Solve for x
    x = 117,783,981,158.45/552,463.72
  6. Step 6: Final answer
    x = 213,197.68

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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.