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Finding the Fourth Proportional to 308,240.46, 425,363.36 and 172,274.94

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Solution

The fourth proportional to 308,240.46, 425,363.36 and 172,274.94 is: 237,734.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,240.46 : 425,363.36 = 172,274.94 : x
  2. Step 2: Convert to fraction form
    308,240.46/425,363.36 = 172,274.94/x
  3. Step 3: Cross multiply
    308,240.46x = 425,363.36 × 172,274.94
  4. Step 4: Simplify right side
    308,240.46x = 73,279,446,460.82
  5. Step 5: Solve for x
    x = 73,279,446,460.82/308,240.46
  6. Step 6: Final answer
    x = 237,734.68

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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.