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Finding the Fourth Proportional to 167,200.74, 230,721.75 and 99,206.01

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Solution

The fourth proportional to 167,200.74, 230,721.75 and 99,206.01 is: 136,895.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,200.74 : 230,721.75 = 99,206.01 : x
  2. Step 2: Convert to fraction form
    167,200.74/230,721.75 = 99,206.01/x
  3. Step 3: Cross multiply
    167,200.74x = 230,721.75 × 99,206.01
  4. Step 4: Simplify right side
    167,200.74x = 22,888,984,237.72
  5. Step 5: Solve for x
    x = 22,888,984,237.72/167,200.74
  6. Step 6: Final answer
    x = 136,895.23

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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.