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Finding the Fourth Proportional to 117,260.13, 161,952.63 and 79,468.77

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Solution

The fourth proportional to 117,260.13, 161,952.63 and 79,468.77 is: 109,757.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,260.13 : 161,952.63 = 79,468.77 : x
  2. Step 2: Convert to fraction form
    117,260.13/161,952.63 = 79,468.77/x
  3. Step 3: Cross multiply
    117,260.13x = 161,952.63 × 79,468.77
  4. Step 4: Simplify right side
    117,260.13x = 12,870,176,304.37
  5. Step 5: Solve for x
    x = 12,870,176,304.37/117,260.13
  6. Step 6: Final answer
    x = 109,757.48

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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.