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Finding the Fourth Proportional to 169,939.16, 234,489.75 and 98,325.86

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Solution

The fourth proportional to 169,939.16, 234,489.75 and 98,325.86 is: 135,674.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,939.16 : 234,489.75 = 98,325.86 : x
  2. Step 2: Convert to fraction form
    169,939.16/234,489.75 = 98,325.86/x
  3. Step 3: Cross multiply
    169,939.16x = 234,489.75 × 98,325.86
  4. Step 4: Simplify right side
    169,939.16x = 23,056,405,157.49
  5. Step 5: Solve for x
    x = 23,056,405,157.49/169,939.16
  6. Step 6: Final answer
    x = 135,674.47

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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.