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Finding the Fourth Proportional to 101,585.52, 140,183.87 and 56,260.80

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Solution

The fourth proportional to 101,585.52, 140,183.87 and 56,260.80 is: 77,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,585.52 : 140,183.87 = 56,260.80 : x
  2. Step 2: Convert to fraction form
    101,585.52/140,183.87 = 56,260.80/x
  3. Step 3: Cross multiply
    101,585.52x = 140,183.87 × 56,260.80
  4. Step 4: Simplify right side
    101,585.52x = 7,886,856,391.99
  5. Step 5: Solve for x
    x = 7,886,856,391.99/101,585.52
  6. Step 6: Final answer
    x = 77,637.60

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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.