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Finding the Fourth Proportional to 77,593.60, 107,093.12 and 45,760.64

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Solution

The fourth proportional to 77,593.60, 107,093.12 and 45,760.64 is: 63,157.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,593.60 : 107,093.12 = 45,760.64 : x
  2. Step 2: Convert to fraction form
    77,593.60/107,093.12 = 45,760.64/x
  3. Step 3: Cross multiply
    77,593.60x = 107,093.12 × 45,760.64
  4. Step 4: Simplify right side
    77,593.60x = 4,900,649,710.80
  5. Step 5: Solve for x
    x = 4,900,649,710.80/77,593.60
  6. Step 6: Final answer
    x = 63,157.91

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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.