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Finding the Fourth Proportional to 223,903.47, 335,899.49 and 63,980.85

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Solution

The fourth proportional to 223,903.47, 335,899.49 and 63,980.85 is: 95,983.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,903.47 : 335,899.49 = 63,980.85 : x
  2. Step 2: Convert to fraction form
    223,903.47/335,899.49 = 63,980.85/x
  3. Step 3: Cross multiply
    223,903.47x = 335,899.49 × 63,980.85
  4. Step 4: Simplify right side
    223,903.47x = 21,491,134,884.77
  5. Step 5: Solve for x
    x = 21,491,134,884.77/223,903.47
  6. Step 6: Final answer
    x = 95,983.93

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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.