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Finding the Fourth Proportional to 351,574.64, 527,362.23 and 85,335.41

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Solution

The fourth proportional to 351,574.64, 527,362.23 and 85,335.41 is: 128,003.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,574.64 : 527,362.23 = 85,335.41 : x
  2. Step 2: Convert to fraction form
    351,574.64/527,362.23 = 85,335.41/x
  3. Step 3: Cross multiply
    351,574.64x = 527,362.23 × 85,335.41
  4. Step 4: Simplify right side
    351,574.64x = 45,002,672,115.56
  5. Step 5: Solve for x
    x = 45,002,672,115.56/351,574.64
  6. Step 6: Final answer
    x = 128,003.18

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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.