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Finding the Fourth Proportional to 73,493.87, 109,908.70 and 56,624.81

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Solution

The fourth proportional to 73,493.87, 109,908.70 and 56,624.81 is: 84,681.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,493.87 : 109,908.70 = 56,624.81 : x
  2. Step 2: Convert to fraction form
    73,493.87/109,908.70 = 56,624.81/x
  3. Step 3: Cross multiply
    73,493.87x = 109,908.70 × 56,624.81
  4. Step 4: Simplify right side
    73,493.87x = 6,223,558,563.74
  5. Step 5: Solve for x
    x = 6,223,558,563.74/73,493.87
  6. Step 6: Final answer
    x = 84,681.33

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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.