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Finding the Fourth Proportional to 74,137, 110,926.48 and 51,993.60

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Solution

The fourth proportional to 74,137, 110,926.48 and 51,993.60 is: 77,794.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,137 : 110,926.48 = 51,993.60 : x
  2. Step 2: Convert to fraction form
    74,137/110,926.48 = 51,993.60/x
  3. Step 3: Cross multiply
    74,137x = 110,926.48 × 51,993.60
  4. Step 4: Simplify right side
    74,137x = 5,767,467,030.53
  5. Step 5: Solve for x
    x = 5,767,467,030.53/74,137
  6. Step 6: Final answer
    x = 77,794.72

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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.