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Finding the Fourth Proportional to 86,908.68, 119,935.80 and 49,182.92

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Solution

The fourth proportional to 86,908.68, 119,935.80 and 49,182.92 is: 67,873.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,908.68 : 119,935.80 = 49,182.92 : x
  2. Step 2: Convert to fraction form
    86,908.68/119,935.80 = 49,182.92/x
  3. Step 3: Cross multiply
    86,908.68x = 119,935.80 × 49,182.92
  4. Step 4: Simplify right side
    86,908.68x = 5,898,792,856.54
  5. Step 5: Solve for x
    x = 5,898,792,856.54/86,908.68
  6. Step 6: Final answer
    x = 67,873.46

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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.