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Finding the Fourth Proportional to 314,995.05, 472,450.05 and 125,594.78

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Solution

The fourth proportional to 314,995.05, 472,450.05 and 125,594.78 is: 188,375.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,995.05 : 472,450.05 = 125,594.78 : x
  2. Step 2: Convert to fraction form
    314,995.05/472,450.05 = 125,594.78/x
  3. Step 3: Cross multiply
    314,995.05x = 472,450.05 × 125,594.78
  4. Step 4: Simplify right side
    314,995.05x = 59,337,257,728.49
  5. Step 5: Solve for x
    x = 59,337,257,728.49/314,995.05
  6. Step 6: Final answer
    x = 188,375.21

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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.