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Finding the Fourth Proportional to 100,967.20, 151,429.20 and 44,807.20

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Solution

The fourth proportional to 100,967.20, 151,429.20 and 44,807.20 is: 67,201.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,967.20 : 151,429.20 = 44,807.20 : x
  2. Step 2: Convert to fraction form
    100,967.20/151,429.20 = 44,807.20/x
  3. Step 3: Cross multiply
    100,967.20x = 151,429.20 × 44,807.20
  4. Step 4: Simplify right side
    100,967.20x = 6,785,118,450.24
  5. Step 5: Solve for x
    x = 6,785,118,450.24/100,967.20
  6. Step 6: Final answer
    x = 67,201.21

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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.