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Finding the Fourth Proportional to 169,617.81, 234,062.09 and 93,136.60

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Solution

The fourth proportional to 169,617.81, 234,062.09 and 93,136.60 is: 128,522.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,617.81 : 234,062.09 = 93,136.60 : x
  2. Step 2: Convert to fraction form
    169,617.81/234,062.09 = 93,136.60/x
  3. Step 3: Cross multiply
    169,617.81x = 234,062.09 × 93,136.60
  4. Step 4: Simplify right side
    169,617.81x = 21,799,747,251.49
  5. Step 5: Solve for x
    x = 21,799,747,251.49/169,617.81
  6. Step 6: Final answer
    x = 128,522.75

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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.