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Finding the Fourth Proportional to 304,899.39, 457,630.16 and 155,247.57

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Solution

The fourth proportional to 304,899.39, 457,630.16 and 155,247.57 is: 233,014.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,899.39 : 457,630.16 = 155,247.57 : x
  2. Step 2: Convert to fraction form
    304,899.39/457,630.16 = 155,247.57/x
  3. Step 3: Cross multiply
    304,899.39x = 457,630.16 × 155,247.57
  4. Step 4: Simplify right side
    304,899.39x = 71,045,969,522.47
  5. Step 5: Solve for x
    x = 71,045,969,522.47/304,899.39
  6. Step 6: Final answer
    x = 233,014.47

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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.