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Finding the Fourth Proportional to 223,409.75, 335,139.26 and 65,650.50

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Solution

The fourth proportional to 223,409.75, 335,139.26 and 65,650.50 is: 98,482.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,409.75 : 335,139.26 = 65,650.50 : x
  2. Step 2: Convert to fraction form
    223,409.75/335,139.26 = 65,650.50/x
  3. Step 3: Cross multiply
    223,409.75x = 335,139.26 × 65,650.50
  4. Step 4: Simplify right side
    223,409.75x = 22,002,059,660.38
  5. Step 5: Solve for x
    x = 22,002,059,660.38/223,409.75
  6. Step 6: Final answer
    x = 98,482.99

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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.