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Finding the Fourth Proportional to 195,642.78, 293,456.48 and 69,277.92

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Solution

The fourth proportional to 195,642.78, 293,456.48 and 69,277.92 is: 103,914.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,642.78 : 293,456.48 = 69,277.92 : x
  2. Step 2: Convert to fraction form
    195,642.78/293,456.48 = 69,277.92/x
  3. Step 3: Cross multiply
    195,642.78x = 293,456.48 × 69,277.92
  4. Step 4: Simplify right side
    195,642.78x = 20,330,054,544.92
  5. Step 5: Solve for x
    x = 20,330,054,544.92/195,642.78
  6. Step 6: Final answer
    x = 103,914.16

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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.