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Finding the Fourth Proportional to 101,967.90, 140,676.44 and 75,174.11

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Solution

The fourth proportional to 101,967.90, 140,676.44 and 75,174.11 is: 103,711.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,967.90 : 140,676.44 = 75,174.11 : x
  2. Step 2: Convert to fraction form
    101,967.90/140,676.44 = 75,174.11/x
  3. Step 3: Cross multiply
    101,967.90x = 140,676.44 × 75,174.11
  4. Step 4: Simplify right side
    101,967.90x = 10,575,225,095.72
  5. Step 5: Solve for x
    x = 10,575,225,095.72/101,967.90
  6. Step 6: Final answer
    x = 103,711.32

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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.