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Finding the Fourth Proportional to 73,380.74, 110,008.94 and 29,038.78

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Solution

The fourth proportional to 73,380.74, 110,008.94 and 29,038.78 is: 43,533.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,380.74 : 110,008.94 = 29,038.78 : x
  2. Step 2: Convert to fraction form
    73,380.74/110,008.94 = 29,038.78/x
  3. Step 3: Cross multiply
    73,380.74x = 110,008.94 × 29,038.78
  4. Step 4: Simplify right side
    73,380.74x = 3,194,525,406.69
  5. Step 5: Solve for x
    x = 3,194,525,406.69/73,380.74
  6. Step 6: Final answer
    x = 43,533.57

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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.