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Finding the Fourth Proportional to 159,186.72, 238,808.52 and 65,641.44

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Solution

The fourth proportional to 159,186.72, 238,808.52 and 65,641.44 is: 98,473.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,186.72 : 238,808.52 = 65,641.44 : x
  2. Step 2: Convert to fraction form
    159,186.72/238,808.52 = 65,641.44/x
  3. Step 3: Cross multiply
    159,186.72x = 238,808.52 × 65,641.44
  4. Step 4: Simplify right side
    159,186.72x = 15,675,735,137.07
  5. Step 5: Solve for x
    x = 15,675,735,137.07/159,186.72
  6. Step 6: Final answer
    x = 98,473.89

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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.