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Finding the Fourth Proportional to 174,431, 261,649.02 and 49,772

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Solution

The fourth proportional to 174,431, 261,649.02 and 49,772 is: 74,658.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,431 : 261,649.02 = 49,772 : x
  2. Step 2: Convert to fraction form
    174,431/261,649.02 = 49,772/x
  3. Step 3: Cross multiply
    174,431x = 261,649.02 × 49,772
  4. Step 4: Simplify right side
    174,431x = 13,022,795,023.44
  5. Step 5: Solve for x
    x = 13,022,795,023.44/174,431
  6. Step 6: Final answer
    x = 74,658.72

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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.