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Finding the Fourth Proportional to 168,330.42, 232,294.64 and 91,847.79

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Solution

The fourth proportional to 168,330.42, 232,294.64 and 91,847.79 is: 126,749.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,330.42 : 232,294.64 = 91,847.79 : x
  2. Step 2: Convert to fraction form
    168,330.42/232,294.64 = 91,847.79/x
  3. Step 3: Cross multiply
    168,330.42x = 232,294.64 × 91,847.79
  4. Step 4: Simplify right side
    168,330.42x = 21,335,748,853.61
  5. Step 5: Solve for x
    x = 21,335,748,853.61/168,330.42
  6. Step 6: Final answer
    x = 126,749.22

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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.