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Finding the Fourth Proportional to 153,863.89, 230,620.87 and 65,061.97

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Solution

The fourth proportional to 153,863.89, 230,620.87 and 65,061.97 is: 97,518.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,863.89 : 230,620.87 = 65,061.97 : x
  2. Step 2: Convert to fraction form
    153,863.89/230,620.87 = 65,061.97/x
  3. Step 3: Cross multiply
    153,863.89x = 230,620.87 × 65,061.97
  4. Step 4: Simplify right side
    153,863.89x = 15,004,648,125.31
  5. Step 5: Solve for x
    x = 15,004,648,125.31/153,863.89
  6. Step 6: Final answer
    x = 97,518.97

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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.