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Finding the Fourth Proportional to 86,853.44, 119,860.16 and 49,133.44

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Solution

The fourth proportional to 86,853.44, 119,860.16 and 49,133.44 is: 67,805.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,853.44 : 119,860.16 = 49,133.44 : x
  2. Step 2: Convert to fraction form
    86,853.44/119,860.16 = 49,133.44/x
  3. Step 3: Cross multiply
    86,853.44x = 119,860.16 × 49,133.44
  4. Step 4: Simplify right side
    86,853.44x = 5,889,141,979.75
  5. Step 5: Solve for x
    x = 5,889,141,979.75/86,853.44
  6. Step 6: Final answer
    x = 67,805.51

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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.