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Finding the Fourth Proportional to 86,891.94, 119,965.05 and 59,714.82

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Solution

The fourth proportional to 86,891.94, 119,965.05 and 59,714.82 is: 82,443.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,891.94 : 119,965.05 = 59,714.82 : x
  2. Step 2: Convert to fraction form
    86,891.94/119,965.05 = 59,714.82/x
  3. Step 3: Cross multiply
    86,891.94x = 119,965.05 × 59,714.82
  4. Step 4: Simplify right side
    86,891.94x = 7,163,691,367.04
  5. Step 5: Solve for x
    x = 7,163,691,367.04/86,891.94
  6. Step 6: Final answer
    x = 82,443.68

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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.