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Finding the Fourth Proportional to 73,937.21, 110,963.32 and 51,605.51

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Solution

The fourth proportional to 73,937.21, 110,963.32 and 51,605.51 is: 77,448.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,937.21 : 110,963.32 = 51,605.51 : x
  2. Step 2: Convert to fraction form
    73,937.21/110,963.32 = 51,605.51/x
  3. Step 3: Cross multiply
    73,937.21x = 110,963.32 × 51,605.51
  4. Step 4: Simplify right side
    73,937.21x = 5,726,318,036.06
  5. Step 5: Solve for x
    x = 5,726,318,036.06/73,937.21
  6. Step 6: Final answer
    x = 77,448.40

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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.