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Finding the Fourth Proportional to 154,004.70, 231,007.05 and 94,647.90

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Solution

The fourth proportional to 154,004.70, 231,007.05 and 94,647.90 is: 141,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,004.70 : 231,007.05 = 94,647.90 : x
  2. Step 2: Convert to fraction form
    154,004.70/231,007.05 = 94,647.90/x
  3. Step 3: Cross multiply
    154,004.70x = 231,007.05 × 94,647.90
  4. Step 4: Simplify right side
    154,004.70x = 21,864,332,167.70
  5. Step 5: Solve for x
    x = 21,864,332,167.70/154,004.70
  6. Step 6: Final answer
    x = 141,971.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.