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Finding the Fourth Proportional to 101,679.28, 140,285.32 and 58,652.98

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Solution

The fourth proportional to 101,679.28, 140,285.32 and 58,652.98 is: 80,922.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,679.28 : 140,285.32 = 58,652.98 : x
  2. Step 2: Convert to fraction form
    101,679.28/140,285.32 = 58,652.98/x
  3. Step 3: Cross multiply
    101,679.28x = 140,285.32 × 58,652.98
  4. Step 4: Simplify right side
    101,679.28x = 8,228,151,570.91
  5. Step 5: Solve for x
    x = 8,228,151,570.91/101,679.28
  6. Step 6: Final answer
    x = 80,922.60

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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.