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Finding the Fourth Proportional to 267,639.82, 369,283.13 and 152,881.78

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Solution

The fourth proportional to 267,639.82, 369,283.13 and 152,881.78 is: 210,942.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,639.82 : 369,283.13 = 152,881.78 : x
  2. Step 2: Convert to fraction form
    267,639.82/369,283.13 = 152,881.78/x
  3. Step 3: Cross multiply
    267,639.82x = 369,283.13 × 152,881.78
  4. Step 4: Simplify right side
    267,639.82x = 56,456,660,550.75
  5. Step 5: Solve for x
    x = 56,456,660,550.75/267,639.82
  6. Step 6: Final answer
    x = 210,942.68

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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.