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Finding the Fourth Proportional to 64,306.30, 88,721.11 and 37,443.06

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Solution

The fourth proportional to 64,306.30, 88,721.11 and 37,443.06 is: 51,658.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,306.30 : 88,721.11 = 37,443.06 : x
  2. Step 2: Convert to fraction form
    64,306.30/88,721.11 = 37,443.06/x
  3. Step 3: Cross multiply
    64,306.30x = 88,721.11 × 37,443.06
  4. Step 4: Simplify right side
    64,306.30x = 3,321,989,845.00
  5. Step 5: Solve for x
    x = 3,321,989,845.00/64,306.30
  6. Step 6: Final answer
    x = 51,658.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.