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Finding the Fourth Proportional to 351,903.02, 527,801.06 and 115,240.46

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Solution

The fourth proportional to 351,903.02, 527,801.06 and 115,240.46 is: 172,843.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,903.02 : 527,801.06 = 115,240.46 : x
  2. Step 2: Convert to fraction form
    351,903.02/527,801.06 = 115,240.46/x
  3. Step 3: Cross multiply
    351,903.02x = 527,801.06 × 115,240.46
  4. Step 4: Simplify right side
    351,903.02x = 60,824,034,591.98
  5. Step 5: Solve for x
    x = 60,824,034,591.98/351,903.02
  6. Step 6: Final answer
    x = 172,843.18

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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.