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Finding the Fourth Proportional to 250,090.78, 375,194.67 and 72,601.18

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Solution

The fourth proportional to 250,090.78, 375,194.67 and 72,601.18 is: 108,918.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,090.78 : 375,194.67 = 72,601.18 : x
  2. Step 2: Convert to fraction form
    250,090.78/375,194.67 = 72,601.18/x
  3. Step 3: Cross multiply
    250,090.78x = 375,194.67 × 72,601.18
  4. Step 4: Simplify right side
    250,090.78x = 27,239,575,771.71
  5. Step 5: Solve for x
    x = 27,239,575,771.71/250,090.78
  6. Step 6: Final answer
    x = 108,918.75

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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.