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Finding the Fourth Proportional to 434,672.70, 652,203.45 and 154,391.10

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Solution

The fourth proportional to 434,672.70, 652,203.45 and 154,391.10 is: 231,655.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,672.70 : 652,203.45 = 154,391.10 : x
  2. Step 2: Convert to fraction form
    434,672.70/652,203.45 = 154,391.10/x
  3. Step 3: Cross multiply
    434,672.70x = 652,203.45 × 154,391.10
  4. Step 4: Simplify right side
    434,672.70x = 100,694,408,069.30
  5. Step 5: Solve for x
    x = 100,694,408,069.30/434,672.70
  6. Step 6: Final answer
    x = 231,655.70

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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.