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Finding the Fourth Proportional to 73,688.72, 110,451 and 29,303.60

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Solution

The fourth proportional to 73,688.72, 110,451 and 29,303.60 is: 43,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,688.72 : 110,451 = 29,303.60 : x
  2. Step 2: Convert to fraction form
    73,688.72/110,451 = 29,303.60/x
  3. Step 3: Cross multiply
    73,688.72x = 110,451 × 29,303.60
  4. Step 4: Simplify right side
    73,688.72x = 3,236,611,923.60
  5. Step 5: Solve for x
    x = 3,236,611,923.60/73,688.72
  6. Step 6: Final answer
    x = 43,922.76

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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.