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Finding the Fourth Proportional to 77,176.59, 115,814.30 and 41,662.64

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Solution

The fourth proportional to 77,176.59, 115,814.30 and 41,662.64 is: 62,520.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,176.59 : 115,814.30 = 41,662.64 : x
  2. Step 2: Convert to fraction form
    77,176.59/115,814.30 = 41,662.64/x
  3. Step 3: Cross multiply
    77,176.59x = 115,814.30 × 41,662.64
  4. Step 4: Simplify right side
    77,176.59x = 4,825,129,487.75
  5. Step 5: Solve for x
    x = 4,825,129,487.75/77,176.59
  6. Step 6: Final answer
    x = 62,520.64

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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.