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Finding the Fourth Proportional to 144,600.56, 216,618.34 and 99,613.97

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Solution

The fourth proportional to 144,600.56, 216,618.34 and 99,613.97 is: 149,226.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,600.56 : 216,618.34 = 99,613.97 : x
  2. Step 2: Convert to fraction form
    144,600.56/216,618.34 = 99,613.97/x
  3. Step 3: Cross multiply
    144,600.56x = 216,618.34 × 99,613.97
  4. Step 4: Simplify right side
    144,600.56x = 21,578,211,739.12
  5. Step 5: Solve for x
    x = 21,578,211,739.12/144,600.56
  6. Step 6: Final answer
    x = 149,226.34

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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.