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Finding the Fourth Proportional to 105,473.40, 158,170.20 and 34,377.40

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Solution

The fourth proportional to 105,473.40, 158,170.20 and 34,377.40 is: 51,553.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,473.40 : 158,170.20 = 34,377.40 : x
  2. Step 2: Convert to fraction form
    105,473.40/158,170.20 = 34,377.40/x
  3. Step 3: Cross multiply
    105,473.40x = 158,170.20 × 34,377.40
  4. Step 4: Simplify right side
    105,473.40x = 5,437,480,233.48
  5. Step 5: Solve for x
    x = 5,437,480,233.48/105,473.40
  6. Step 6: Final answer
    x = 51,553.10

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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.