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Finding the Fourth Proportional to 134,661.62, 185,833.61 and 74,230.95

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Solution

The fourth proportional to 134,661.62, 185,833.61 and 74,230.95 is: 102,439.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,661.62 : 185,833.61 = 74,230.95 : x
  2. Step 2: Convert to fraction form
    134,661.62/185,833.61 = 74,230.95/x
  3. Step 3: Cross multiply
    134,661.62x = 185,833.61 × 74,230.95
  4. Step 4: Simplify right side
    134,661.62x = 13,794,605,041.07
  5. Step 5: Solve for x
    x = 13,794,605,041.07/134,661.62
  6. Step 6: Final answer
    x = 102,439.03

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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.