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Finding the Fourth Proportional to 100,854.69, 151,211.99 and 44,664.18

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Solution

The fourth proportional to 100,854.69, 151,211.99 and 44,664.18 is: 66,965.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,854.69 : 151,211.99 = 44,664.18 : x
  2. Step 2: Convert to fraction form
    100,854.69/151,211.99 = 44,664.18/x
  3. Step 3: Cross multiply
    100,854.69x = 151,211.99 × 44,664.18
  4. Step 4: Simplify right side
    100,854.69x = 6,753,759,316.20
  5. Step 5: Solve for x
    x = 6,753,759,316.20/100,854.69
  6. Step 6: Final answer
    x = 66,965.25

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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.