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Finding the Fourth Proportional to 67,173.69, 100,783.32 and 29,728.61

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Solution

The fourth proportional to 67,173.69, 100,783.32 and 29,728.61 is: 44,603.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,173.69 : 100,783.32 = 29,728.61 : x
  2. Step 2: Convert to fraction form
    67,173.69/100,783.32 = 29,728.61/x
  3. Step 3: Cross multiply
    67,173.69x = 100,783.32 × 29,728.61
  4. Step 4: Simplify right side
    67,173.69x = 2,996,148,014.79
  5. Step 5: Solve for x
    x = 2,996,148,014.79/67,173.69
  6. Step 6: Final answer
    x = 44,603.00

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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.