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Finding the Fourth Proportional to 86,952.39, 119,990.86 and 49,226.64

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Solution

The fourth proportional to 86,952.39, 119,990.86 and 49,226.64 is: 67,930.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,952.39 : 119,990.86 = 49,226.64 : x
  2. Step 2: Convert to fraction form
    86,952.39/119,990.86 = 49,226.64/x
  3. Step 3: Cross multiply
    86,952.39x = 119,990.86 × 49,226.64
  4. Step 4: Simplify right side
    86,952.39x = 5,906,746,868.51
  5. Step 5: Solve for x
    x = 5,906,746,868.51/86,952.39
  6. Step 6: Final answer
    x = 67,930.82

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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.