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Finding the Fourth Proportional to 223,814.42, 335,783.20 and 66,042.87

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Solution

The fourth proportional to 223,814.42, 335,783.20 and 66,042.87 is: 99,082.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,814.42 : 335,783.20 = 66,042.87 : x
  2. Step 2: Convert to fraction form
    223,814.42/335,783.20 = 66,042.87/x
  3. Step 3: Cross multiply
    223,814.42x = 335,783.20 × 66,042.87
  4. Step 4: Simplify right side
    223,814.42x = 22,176,086,225.78
  5. Step 5: Solve for x
    x = 22,176,086,225.78/223,814.42
  6. Step 6: Final answer
    x = 99,082.47

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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.