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Finding the Fourth Proportional to 144,760.50, 217,214.80 and 68,944.77

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Solution

The fourth proportional to 144,760.50, 217,214.80 and 68,944.77 is: 103,452.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,760.50 : 217,214.80 = 68,944.77 : x
  2. Step 2: Convert to fraction form
    144,760.50/217,214.80 = 68,944.77/x
  3. Step 3: Cross multiply
    144,760.50x = 217,214.80 × 68,944.77
  4. Step 4: Simplify right side
    144,760.50x = 14,975,824,254.23
  5. Step 5: Solve for x
    x = 14,975,824,254.23/144,760.50
  6. Step 6: Final answer
    x = 103,452.42

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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.