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Finding the Fourth Proportional to 166,437.63, 229,687.47 and 90,986.13

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Solution

The fourth proportional to 166,437.63, 229,687.47 and 90,986.13 is: 125,562.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,437.63 : 229,687.47 = 90,986.13 : x
  2. Step 2: Convert to fraction form
    166,437.63/229,687.47 = 90,986.13/x
  3. Step 3: Cross multiply
    166,437.63x = 229,687.47 × 90,986.13
  4. Step 4: Simplify right side
    166,437.63x = 20,898,374,004.79
  5. Step 5: Solve for x
    x = 20,898,374,004.79/166,437.63
  6. Step 6: Final answer
    x = 125,562.79

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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.