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Finding the Fourth Proportional to 167,216.66, 230,743.75 and 99,221.92

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Solution

The fourth proportional to 167,216.66, 230,743.75 and 99,221.92 is: 136,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,216.66 : 230,743.75 = 99,221.92 : x
  2. Step 2: Convert to fraction form
    167,216.66/230,743.75 = 99,221.92/x
  3. Step 3: Cross multiply
    167,216.66x = 230,743.75 × 99,221.92
  4. Step 4: Simplify right side
    167,216.66x = 22,894,837,903
  5. Step 5: Solve for x
    x = 22,894,837,903/167,216.66
  6. Step 6: Final answer
    x = 136,917.21

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1.5x scale

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.