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Finding the Fourth Proportional to 269,501.48, 371,911.30 and 154,787.56

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Solution

The fourth proportional to 269,501.48, 371,911.30 and 154,787.56 is: 213,606.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,501.48 : 371,911.30 = 154,787.56 : x
  2. Step 2: Convert to fraction form
    269,501.48/371,911.30 = 154,787.56/x
  3. Step 3: Cross multiply
    269,501.48x = 371,911.30 × 154,787.56
  4. Step 4: Simplify right side
    269,501.48x = 57,567,241,346.68
  5. Step 5: Solve for x
    x = 57,567,241,346.68/269,501.48
  6. Step 6: Final answer
    x = 213,606.40

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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.