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Finding the Fourth Proportional to 67,307.72, 100,994.93 and 49,494.47

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Solution

The fourth proportional to 67,307.72, 100,994.93 and 49,494.47 is: 74,266.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,307.72 : 100,994.93 = 49,494.47 : x
  2. Step 2: Convert to fraction form
    67,307.72/100,994.93 = 49,494.47/x
  3. Step 3: Cross multiply
    67,307.72x = 100,994.93 × 49,494.47
  4. Step 4: Simplify right side
    67,307.72x = 4,998,690,285.56
  5. Step 5: Solve for x
    x = 4,998,690,285.56/67,307.72
  6. Step 6: Final answer
    x = 74,266.23

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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.