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Finding the Fourth Proportional to 214,887.04, 322,330.56 and 74,645.80

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Solution

The fourth proportional to 214,887.04, 322,330.56 and 74,645.80 is: 111,968.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,887.04 : 322,330.56 = 74,645.80 : x
  2. Step 2: Convert to fraction form
    214,887.04/322,330.56 = 74,645.80/x
  3. Step 3: Cross multiply
    214,887.04x = 322,330.56 × 74,645.80
  4. Step 4: Simplify right side
    214,887.04x = 24,060,622,515.65
  5. Step 5: Solve for x
    x = 24,060,622,515.65/214,887.04
  6. Step 6: Final answer
    x = 111,968.70

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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.