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Finding the Fourth Proportional to 195,876.69, 270,365.88 and 115,350.92

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Solution

The fourth proportional to 195,876.69, 270,365.88 and 115,350.92 is: 159,217.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,876.69 : 270,365.88 = 115,350.92 : x
  2. Step 2: Convert to fraction form
    195,876.69/270,365.88 = 115,350.92/x
  3. Step 3: Cross multiply
    195,876.69x = 270,365.88 × 115,350.92
  4. Step 4: Simplify right side
    195,876.69x = 31,186,952,994.61
  5. Step 5: Solve for x
    x = 31,186,952,994.61/195,876.69
  6. Step 6: Final answer
    x = 159,217.28

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1.5x scale

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.