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Finding the Fourth Proportional to 167,385.03, 230,990.29 and 100,317.03

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Solution

The fourth proportional to 167,385.03, 230,990.29 and 100,317.03 is: 138,436.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,385.03 : 230,990.29 = 100,317.03 : x
  2. Step 2: Convert to fraction form
    167,385.03/230,990.29 = 100,317.03/x
  3. Step 3: Cross multiply
    167,385.03x = 230,990.29 × 100,317.03
  4. Step 4: Simplify right side
    167,385.03x = 23,172,259,851.64
  5. Step 5: Solve for x
    x = 23,172,259,851.64/167,385.03
  6. Step 6: Final answer
    x = 138,436.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.