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Finding the Fourth Proportional to 173,090.40, 259,781.40 and 67,984.80

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Solution

The fourth proportional to 173,090.40, 259,781.40 and 67,984.80 is: 102,034.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,090.40 : 259,781.40 = 67,984.80 : x
  2. Step 2: Convert to fraction form
    173,090.40/259,781.40 = 67,984.80/x
  3. Step 3: Cross multiply
    173,090.40x = 259,781.40 × 67,984.80
  4. Step 4: Simplify right side
    173,090.40x = 17,661,186,522.72
  5. Step 5: Solve for x
    x = 17,661,186,522.72/173,090.40
  6. Step 6: Final answer
    x = 102,034.47

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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.