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Finding the Fourth Proportional to 73,622.56, 110,355 and 29,187.76

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Solution

The fourth proportional to 73,622.56, 110,355 and 29,187.76 is: 43,750.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,622.56 : 110,355 = 29,187.76 : x
  2. Step 2: Convert to fraction form
    73,622.56/110,355 = 29,187.76/x
  3. Step 3: Cross multiply
    73,622.56x = 110,355 × 29,187.76
  4. Step 4: Simplify right side
    73,622.56x = 3,221,015,254.80
  5. Step 5: Solve for x
    x = 3,221,015,254.80/73,622.56
  6. Step 6: Final answer
    x = 43,750.38

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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.