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Finding the Fourth Proportional to 56,601.60, 84,700.80 and 49,286.40

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Solution

The fourth proportional to 56,601.60, 84,700.80 and 49,286.40 is: 73,754.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,601.60 : 84,700.80 = 49,286.40 : x
  2. Step 2: Convert to fraction form
    56,601.60/84,700.80 = 49,286.40/x
  3. Step 3: Cross multiply
    56,601.60x = 84,700.80 × 49,286.40
  4. Step 4: Simplify right side
    56,601.60x = 4,174,597,509.12
  5. Step 5: Solve for x
    x = 4,174,597,509.12/56,601.60
  6. Step 6: Final answer
    x = 73,754.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.