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Finding the Fourth Proportional to 100,805.40, 151,201.98 and 44,629.11

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Solution

The fourth proportional to 100,805.40, 151,201.98 and 44,629.11 is: 66,940.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,805.40 : 151,201.98 = 44,629.11 : x
  2. Step 2: Convert to fraction form
    100,805.40/151,201.98 = 44,629.11/x
  3. Step 3: Cross multiply
    100,805.40x = 151,201.98 × 44,629.11
  4. Step 4: Simplify right side
    100,805.40x = 6,748,009,797.64
  5. Step 5: Solve for x
    x = 6,748,009,797.64/100,805.40
  6. Step 6: Final answer
    x = 66,940.96

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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.