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Finding the Fourth Proportional to 62,709.94, 94,174.89 and 48,685.78

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Solution

The fourth proportional to 62,709.94, 94,174.89 and 48,685.78 is: 73,114.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,709.94 : 94,174.89 = 48,685.78 : x
  2. Step 2: Convert to fraction form
    62,709.94/94,174.89 = 48,685.78/x
  3. Step 3: Cross multiply
    62,709.94x = 94,174.89 × 48,685.78
  4. Step 4: Simplify right side
    62,709.94x = 4,584,977,976.06
  5. Step 5: Solve for x
    x = 4,584,977,976.06/62,709.94
  6. Step 6: Final answer
    x = 73,114.05

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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.