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Finding the Fourth Proportional to 169,399.48, 233,771.59 and 92,919.19

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Solution

The fourth proportional to 169,399.48, 233,771.59 and 92,919.19 is: 128,228.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,399.48 : 233,771.59 = 92,919.19 : x
  2. Step 2: Convert to fraction form
    169,399.48/233,771.59 = 92,919.19/x
  3. Step 3: Cross multiply
    169,399.48x = 233,771.59 × 92,919.19
  4. Step 4: Simplify right side
    169,399.48x = 21,721,867,676.67
  5. Step 5: Solve for x
    x = 21,721,867,676.67/169,399.48
  6. Step 6: Final answer
    x = 128,228.66

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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.