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Finding the Fourth Proportional to 158,190.41, 218,269.01 and 93,679.92

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Solution

The fourth proportional to 158,190.41, 218,269.01 and 93,679.92 is: 129,258.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,190.41 : 218,269.01 = 93,679.92 : x
  2. Step 2: Convert to fraction form
    158,190.41/218,269.01 = 93,679.92/x
  3. Step 3: Cross multiply
    158,190.41x = 218,269.01 × 93,679.92
  4. Step 4: Simplify right side
    158,190.41x = 20,447,423,629.48
  5. Step 5: Solve for x
    x = 20,447,423,629.48/158,190.41
  6. Step 6: Final answer
    x = 129,258.30

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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.