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Finding the Fourth Proportional to 195,174, 269,340.48 and 105,750

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Solution

The fourth proportional to 195,174, 269,340.48 and 105,750 is: 145,935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,174 : 269,340.48 = 105,750 : x
  2. Step 2: Convert to fraction form
    195,174/269,340.48 = 105,750/x
  3. Step 3: Cross multiply
    195,174x = 269,340.48 × 105,750
  4. Step 4: Simplify right side
    195,174x = 28,482,755,760.00
  5. Step 5: Solve for x
    x = 28,482,755,760.00/195,174
  6. Step 6: Final answer
    x = 145,935.20

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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.