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Finding the Fourth Proportional to 223,426.14, 335,139.81 and 65,666.89

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Solution

The fourth proportional to 223,426.14, 335,139.81 and 65,666.89 is: 98,500.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,426.14 : 335,139.81 = 65,666.89 : x
  2. Step 2: Convert to fraction form
    223,426.14/335,139.81 = 65,666.89/x
  3. Step 3: Cross multiply
    223,426.14x = 335,139.81 × 65,666.89
  4. Step 4: Simplify right side
    223,426.14x = 22,007,589,037.89
  5. Step 5: Solve for x
    x = 22,007,589,037.89/223,426.14
  6. Step 6: Final answer
    x = 98,500.51

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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.