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Finding the Fourth Proportional to 101,601.50, 140,177.67 and 65,818.94

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Solution

The fourth proportional to 101,601.50, 140,177.67 and 65,818.94 is: 90,809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,601.50 : 140,177.67 = 65,818.94 : x
  2. Step 2: Convert to fraction form
    101,601.50/140,177.67 = 65,818.94/x
  3. Step 3: Cross multiply
    101,601.50x = 140,177.67 × 65,818.94
  4. Step 4: Simplify right side
    101,601.50x = 9,226,345,651.07
  5. Step 5: Solve for x
    x = 9,226,345,651.07/101,601.50
  6. Step 6: Final answer
    x = 90,809.15

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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.