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Finding the Fourth Proportional to 357,002.70, 535,175.85 and 154,472.34

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Solution

The fourth proportional to 357,002.70, 535,175.85 and 154,472.34 is: 231,566.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,002.70 : 535,175.85 = 154,472.34 : x
  2. Step 2: Convert to fraction form
    357,002.70/535,175.85 = 154,472.34/x
  3. Step 3: Cross multiply
    357,002.70x = 535,175.85 × 154,472.34
  4. Step 4: Simplify right side
    357,002.70x = 82,669,865,860.99
  5. Step 5: Solve for x
    x = 82,669,865,860.99/357,002.70
  6. Step 6: Final answer
    x = 231,566.50

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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.