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Finding the Fourth Proportional to 158,998.72, 238,607.43 and 65,504.47

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Solution

The fourth proportional to 158,998.72, 238,607.43 and 65,504.47 is: 98,301.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,998.72 : 238,607.43 = 65,504.47 : x
  2. Step 2: Convert to fraction form
    158,998.72/238,607.43 = 65,504.47/x
  3. Step 3: Cross multiply
    158,998.72x = 238,607.43 × 65,504.47
  4. Step 4: Simplify right side
    158,998.72x = 15,629,853,240.21
  5. Step 5: Solve for x
    x = 15,629,853,240.21/158,998.72
  6. Step 6: Final answer
    x = 98,301.76

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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.