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Finding the Fourth Proportional to 169,601.34, 234,022.59 and 97,990.86

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Solution

The fourth proportional to 169,601.34, 234,022.59 and 97,990.86 is: 135,211.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,601.34 : 234,022.59 = 97,990.86 : x
  2. Step 2: Convert to fraction form
    169,601.34/234,022.59 = 97,990.86/x
  3. Step 3: Cross multiply
    169,601.34x = 234,022.59 × 97,990.86
  4. Step 4: Simplify right side
    169,601.34x = 22,932,074,853.53
  5. Step 5: Solve for x
    x = 22,932,074,853.53/169,601.34
  6. Step 6: Final answer
    x = 135,211.64

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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.