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Finding the Fourth Proportional to 223,357.55, 335,036.40 and 81,176.43

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Solution

The fourth proportional to 223,357.55, 335,036.40 and 81,176.43 is: 121,764.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,357.55 : 335,036.40 = 81,176.43 : x
  2. Step 2: Convert to fraction form
    223,357.55/335,036.40 = 81,176.43/x
  3. Step 3: Cross multiply
    223,357.55x = 335,036.40 × 81,176.43
  4. Step 4: Simplify right side
    223,357.55x = 27,197,058,396.06
  5. Step 5: Solve for x
    x = 27,197,058,396.06/223,357.55
  6. Step 6: Final answer
    x = 121,764.67

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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.