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Finding the Fourth Proportional to 309,228, 426,734.64 and 175,092

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Solution

The fourth proportional to 309,228, 426,734.64 and 175,092 is: 241,626.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,228 : 426,734.64 = 175,092 : x
  2. Step 2: Convert to fraction form
    309,228/426,734.64 = 175,092/x
  3. Step 3: Cross multiply
    309,228x = 426,734.64 × 175,092
  4. Step 4: Simplify right side
    309,228x = 74,717,821,586.88
  5. Step 5: Solve for x
    x = 74,717,821,586.88/309,228
  6. Step 6: Final answer
    x = 241,626.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.