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Finding the Fourth Proportional to 351,570.79, 527,272.21 and 151,781.86

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Solution

The fourth proportional to 351,570.79, 527,272.21 and 151,781.86 is: 227,636.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,570.79 : 527,272.21 = 151,781.86 : x
  2. Step 2: Convert to fraction form
    351,570.79/527,272.21 = 151,781.86/x
  3. Step 3: Cross multiply
    351,570.79x = 527,272.21 × 151,781.86
  4. Step 4: Simplify right side
    351,570.79x = 80,030,356,760.11
  5. Step 5: Solve for x
    x = 80,030,356,760.11/351,570.79
  6. Step 6: Final answer
    x = 227,636.54

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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.