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Finding the Fourth Proportional to 77,754.88, 107,353.38 and 59,818.24

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Solution

The fourth proportional to 77,754.88, 107,353.38 and 59,818.24 is: 82,588.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,754.88 : 107,353.38 = 59,818.24 : x
  2. Step 2: Convert to fraction form
    77,754.88/107,353.38 = 59,818.24/x
  3. Step 3: Cross multiply
    77,754.88x = 107,353.38 × 59,818.24
  4. Step 4: Simplify right side
    77,754.88x = 6,421,690,249.65
  5. Step 5: Solve for x
    x = 6,421,690,249.65/77,754.88
  6. Step 6: Final answer
    x = 82,588.90

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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.