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Finding the Fourth Proportional to 323,572.71, 446,531.84 and 187,687.11

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Solution

The fourth proportional to 323,572.71, 446,531.84 and 187,687.11 is: 259,009.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,572.71 : 446,531.84 = 187,687.11 : x
  2. Step 2: Convert to fraction form
    323,572.71/446,531.84 = 187,687.11/x
  3. Step 3: Cross multiply
    323,572.71x = 446,531.84 × 187,687.11
  4. Step 4: Simplify right side
    323,572.71x = 83,808,267,401.49
  5. Step 5: Solve for x
    x = 83,808,267,401.49/323,572.71
  6. Step 6: Final answer
    x = 259,009.08

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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.