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Finding the Fourth Proportional to 101,311.48, 151,967.27 and 26,431.53

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Solution

The fourth proportional to 101,311.48, 151,967.27 and 26,431.53 is: 39,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,311.48 : 151,967.27 = 26,431.53 : x
  2. Step 2: Convert to fraction form
    101,311.48/151,967.27 = 26,431.53/x
  3. Step 3: Cross multiply
    101,311.48x = 151,967.27 × 26,431.53
  4. Step 4: Simplify right side
    101,311.48x = 4,016,727,456.02
  5. Step 5: Solve for x
    x = 4,016,727,456.02/101,311.48
  6. Step 6: Final answer
    x = 39,647.31

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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.