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Finding the Fourth Proportional to 48,991.58, 73,154.64 and 47,662.98

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Solution

The fourth proportional to 48,991.58, 73,154.64 and 47,662.98 is: 71,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,991.58 : 73,154.64 = 47,662.98 : x
  2. Step 2: Convert to fraction form
    48,991.58/73,154.64 = 47,662.98/x
  3. Step 3: Cross multiply
    48,991.58x = 73,154.64 × 47,662.98
  4. Step 4: Simplify right side
    48,991.58x = 3,486,768,143.23
  5. Step 5: Solve for x
    x = 3,486,768,143.23/48,991.58
  6. Step 6: Final answer
    x = 71,170.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.