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Finding the Fourth Proportional to 86,653.71, 119,585.29 and 47,891.87

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Solution

The fourth proportional to 86,653.71, 119,585.29 and 47,891.87 is: 66,092.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,653.71 : 119,585.29 = 47,891.87 : x
  2. Step 2: Convert to fraction form
    86,653.71/119,585.29 = 47,891.87/x
  3. Step 3: Cross multiply
    86,653.71x = 119,585.29 × 47,891.87
  4. Step 4: Simplify right side
    86,653.71x = 5,727,163,162.59
  5. Step 5: Solve for x
    x = 5,727,163,162.59/86,653.71
  6. Step 6: Final answer
    x = 66,092.53

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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.