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Finding the Fourth Proportional to 223,615.01, 335,189.18 and 90,587.09

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Solution

The fourth proportional to 223,615.01, 335,189.18 and 90,587.09 is: 135,786.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,615.01 : 335,189.18 = 90,587.09 : x
  2. Step 2: Convert to fraction form
    223,615.01/335,189.18 = 90,587.09/x
  3. Step 3: Cross multiply
    223,615.01x = 335,189.18 × 90,587.09
  4. Step 4: Simplify right side
    223,615.01x = 30,363,812,415.69
  5. Step 5: Solve for x
    x = 30,363,812,415.69/223,615.01
  6. Step 6: Final answer
    x = 135,786.11

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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.