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Finding the Fourth Proportional to 167,997.60, 251,996.40 and 138,837.60

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Solution

The fourth proportional to 167,997.60, 251,996.40 and 138,837.60 is: 208,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,997.60 : 251,996.40 = 138,837.60 : x
  2. Step 2: Convert to fraction form
    167,997.60/251,996.40 = 138,837.60/x
  3. Step 3: Cross multiply
    167,997.60x = 251,996.40 × 138,837.60
  4. Step 4: Simplify right side
    167,997.60x = 34,986,575,384.64
  5. Step 5: Solve for x
    x = 34,986,575,384.64/167,997.60
  6. Step 6: Final answer
    x = 208,256.40

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1.5x scale

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.