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Finding the Fourth Proportional to 111,098.48, 166,647.72 and 61,152.87

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Solution

The fourth proportional to 111,098.48, 166,647.72 and 61,152.87 is: 91,729.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,098.48 : 166,647.72 = 61,152.87 : x
  2. Step 2: Convert to fraction form
    111,098.48/166,647.72 = 61,152.87/x
  3. Step 3: Cross multiply
    111,098.48x = 166,647.72 × 61,152.87
  4. Step 4: Simplify right side
    111,098.48x = 10,190,986,356.96
  5. Step 5: Solve for x
    x = 10,190,986,356.96/111,098.48
  6. Step 6: Final answer
    x = 91,729.31

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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.