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Finding the Fourth Proportional to 490,687.96, 736,031.03 and 153,754.42

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Solution

The fourth proportional to 490,687.96, 736,031.03 and 153,754.42 is: 230,631.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,687.96 : 736,031.03 = 153,754.42 : x
  2. Step 2: Convert to fraction form
    490,687.96/736,031.03 = 153,754.42/x
  3. Step 3: Cross multiply
    490,687.96x = 736,031.03 × 153,754.42
  4. Step 4: Simplify right side
    490,687.96x = 113,168,024,119.65
  5. Step 5: Solve for x
    x = 113,168,024,119.65/490,687.96
  6. Step 6: Final answer
    x = 230,631.34

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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.