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Finding the Fourth Proportional to 101,793.72, 140,475.70 and 56,472.60

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Solution

The fourth proportional to 101,793.72, 140,475.70 and 56,472.60 is: 77,932.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,793.72 : 140,475.70 = 56,472.60 : x
  2. Step 2: Convert to fraction form
    101,793.72/140,475.70 = 56,472.60/x
  3. Step 3: Cross multiply
    101,793.72x = 140,475.70 × 56,472.60
  4. Step 4: Simplify right side
    101,793.72x = 7,933,028,015.82
  5. Step 5: Solve for x
    x = 7,933,028,015.82/101,793.72
  6. Step 6: Final answer
    x = 77,932.39

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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.