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Finding the Fourth Proportional to 167,411.80, 251,117.70 and 154,581.40

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Solution

The fourth proportional to 167,411.80, 251,117.70 and 154,581.40 is: 231,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,411.80 : 251,117.70 = 154,581.40 : x
  2. Step 2: Convert to fraction form
    167,411.80/251,117.70 = 154,581.40/x
  3. Step 3: Cross multiply
    167,411.80x = 251,117.70 × 154,581.40
  4. Step 4: Simplify right side
    167,411.80x = 38,818,125,630.78
  5. Step 5: Solve for x
    x = 38,818,125,630.78/167,411.80
  6. Step 6: Final answer
    x = 231,872.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.