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Finding the Fourth Proportional to 121,304.99, 167,398.66 and 67,588.85

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Solution

The fourth proportional to 121,304.99, 167,398.66 and 67,588.85 is: 93,271.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,304.99 : 167,398.66 = 67,588.85 : x
  2. Step 2: Convert to fraction form
    121,304.99/167,398.66 = 67,588.85/x
  3. Step 3: Cross multiply
    121,304.99x = 167,398.66 × 67,588.85
  4. Step 4: Simplify right side
    121,304.99x = 11,314,283,423.92
  5. Step 5: Solve for x
    x = 11,314,283,423.92/121,304.99
  6. Step 6: Final answer
    x = 93,271.37

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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.