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Finding the Fourth Proportional to 167,242.74, 230,735.40 and 99,207.60

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Solution

The fourth proportional to 167,242.74, 230,735.40 and 99,207.60 is: 136,871.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,242.74 : 230,735.40 = 99,207.60 : x
  2. Step 2: Convert to fraction form
    167,242.74/230,735.40 = 99,207.60/x
  3. Step 3: Cross multiply
    167,242.74x = 230,735.40 × 99,207.60
  4. Step 4: Simplify right side
    167,242.74x = 22,890,705,269.04
  5. Step 5: Solve for x
    x = 22,890,705,269.04/167,242.74
  6. Step 6: Final answer
    x = 136,871.14

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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.