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Finding the Fourth Proportional to 250,970.81, 376,400.86 and 73,491.66

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Solution

The fourth proportional to 250,970.81, 376,400.86 and 73,491.66 is: 110,221.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,970.81 : 376,400.86 = 73,491.66 : x
  2. Step 2: Convert to fraction form
    250,970.81/376,400.86 = 73,491.66/x
  3. Step 3: Cross multiply
    250,970.81x = 376,400.86 × 73,491.66
  4. Step 4: Simplify right side
    250,970.81x = 27,662,325,530.20
  5. Step 5: Solve for x
    x = 27,662,325,530.20/250,970.81
  6. Step 6: Final answer
    x = 110,221.29

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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.