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Finding the Fourth Proportional to 223,115.28, 334,648.60 and 65,345.12

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Solution

The fourth proportional to 223,115.28, 334,648.60 and 65,345.12 is: 98,010.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,115.28 : 334,648.60 = 65,345.12 : x
  2. Step 2: Convert to fraction form
    223,115.28/334,648.60 = 65,345.12/x
  3. Step 3: Cross multiply
    223,115.28x = 334,648.60 × 65,345.12
  4. Step 4: Simplify right side
    223,115.28x = 21,867,652,924.83
  5. Step 5: Solve for x
    x = 21,867,652,924.83/223,115.28
  6. Step 6: Final answer
    x = 98,010.56

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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.