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Finding the Fourth Proportional to 223,986.72, 335,986.56 and 83,718.48

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Solution

The fourth proportional to 223,986.72, 335,986.56 and 83,718.48 is: 125,580.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,986.72 : 335,986.56 = 83,718.48 : x
  2. Step 2: Convert to fraction form
    223,986.72/335,986.56 = 83,718.48/x
  3. Step 3: Cross multiply
    223,986.72x = 335,986.56 × 83,718.48
  4. Step 4: Simplify right side
    223,986.72x = 28,128,284,103.63
  5. Step 5: Solve for x
    x = 28,128,284,103.63/223,986.72
  6. Step 6: Final answer
    x = 125,580.14

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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.