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Finding the Fourth Proportional to 223,777, 335,391.90 and 105,290.92

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Solution

The fourth proportional to 223,777, 335,391.90 and 105,290.92 is: 157,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,777 : 335,391.90 = 105,290.92 : x
  2. Step 2: Convert to fraction form
    223,777/335,391.90 = 105,290.92/x
  3. Step 3: Cross multiply
    223,777x = 335,391.90 × 105,290.92
  4. Step 4: Simplify right side
    223,777x = 35,313,721,711.55
  5. Step 5: Solve for x
    x = 35,313,721,711.55/223,777
  6. Step 6: Final answer
    x = 157,807.65

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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.