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Finding the Fourth Proportional to 100,752.58, 151,181.79 and 44,631.46

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Solution

The fourth proportional to 100,752.58, 151,181.79 and 44,631.46 is: 66,970.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,752.58 : 151,181.79 = 44,631.46 : x
  2. Step 2: Convert to fraction form
    100,752.58/151,181.79 = 44,631.46/x
  3. Step 3: Cross multiply
    100,752.58x = 151,181.79 × 44,631.46
  4. Step 4: Simplify right side
    100,752.58x = 6,747,464,013.11
  5. Step 5: Solve for x
    x = 6,747,464,013.11/100,752.58
  6. Step 6: Final answer
    x = 66,970.63

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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.