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Finding the Fourth Proportional to 351,576.64, 527,365.23 and 85,337.41

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Solution

The fourth proportional to 351,576.64, 527,365.23 and 85,337.41 is: 128,006.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,576.64 : 527,365.23 = 85,337.41 : x
  2. Step 2: Convert to fraction form
    351,576.64/527,365.23 = 85,337.41/x
  3. Step 3: Cross multiply
    351,576.64x = 527,365.23 × 85,337.41
  4. Step 4: Simplify right side
    351,576.64x = 45,003,982,852.25
  5. Step 5: Solve for x
    x = 45,003,982,852.25/351,576.64
  6. Step 6: Final answer
    x = 128,006.18

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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.