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Finding the Fourth Proportional to 101,181.60, 151,772.40 and 99,626.40

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Solution

The fourth proportional to 101,181.60, 151,772.40 and 99,626.40 is: 149,439.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,181.60 : 151,772.40 = 99,626.40 : x
  2. Step 2: Convert to fraction form
    101,181.60/151,772.40 = 99,626.40/x
  3. Step 3: Cross multiply
    101,181.60x = 151,772.40 × 99,626.40
  4. Step 4: Simplify right side
    101,181.60x = 15,120,537,831.36
  5. Step 5: Solve for x
    x = 15,120,537,831.36/101,181.60
  6. Step 6: Final answer
    x = 149,439.60

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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.