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Finding the Fourth Proportional to 223,394.40, 335,140.20 and 73,609.20

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Solution

The fourth proportional to 223,394.40, 335,140.20 and 73,609.20 is: 110,429.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,394.40 : 335,140.20 = 73,609.20 : x
  2. Step 2: Convert to fraction form
    223,394.40/335,140.20 = 73,609.20/x
  3. Step 3: Cross multiply
    223,394.40x = 335,140.20 × 73,609.20
  4. Step 4: Simplify right side
    223,394.40x = 24,669,402,009.84
  5. Step 5: Solve for x
    x = 24,669,402,009.84/223,394.40
  6. Step 6: Final answer
    x = 110,429.81

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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.