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Finding the Fourth Proportional to 168,357.51, 232,338.26 and 91,881.53

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Solution

The fourth proportional to 168,357.51, 232,338.26 and 91,881.53 is: 126,799.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,357.51 : 232,338.26 = 91,881.53 : x
  2. Step 2: Convert to fraction form
    168,357.51/232,338.26 = 91,881.53/x
  3. Step 3: Cross multiply
    168,357.51x = 232,338.26 × 91,881.53
  4. Step 4: Simplify right side
    168,357.51x = 21,347,594,455.20
  5. Step 5: Solve for x
    x = 21,347,594,455.20/168,357.51
  6. Step 6: Final answer
    x = 126,799.18

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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.