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Finding the Fourth Proportional to 111,012.48, 166,512.93 and 98,674.16

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Solution

The fourth proportional to 111,012.48, 166,512.93 and 98,674.16 is: 148,006.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,012.48 : 166,512.93 = 98,674.16 : x
  2. Step 2: Convert to fraction form
    111,012.48/166,512.93 = 98,674.16/x
  3. Step 3: Cross multiply
    111,012.48x = 166,512.93 × 98,674.16
  4. Step 4: Simplify right side
    111,012.48x = 16,430,522,664.32
  5. Step 5: Solve for x
    x = 16,430,522,664.32/111,012.48
  6. Step 6: Final answer
    x = 148,006.09

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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.