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Finding the Fourth Proportional to 167,302.80, 230,878.01 and 90,821.79

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Solution

The fourth proportional to 167,302.80, 230,878.01 and 90,821.79 is: 125,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,302.80 : 230,878.01 = 90,821.79 : x
  2. Step 2: Convert to fraction form
    167,302.80/230,878.01 = 90,821.79/x
  3. Step 3: Cross multiply
    167,302.80x = 230,878.01 × 90,821.79
  4. Step 4: Simplify right side
    167,302.80x = 20,968,754,366.89
  5. Step 5: Solve for x
    x = 20,968,754,366.89/167,302.80
  6. Step 6: Final answer
    x = 125,334.15

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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.