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Finding the Fourth Proportional to 65,642.49, 90,603.23 and 44,997.21

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Solution

The fourth proportional to 65,642.49, 90,603.23 and 44,997.21 is: 62,107.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,642.49 : 90,603.23 = 44,997.21 : x
  2. Step 2: Convert to fraction form
    65,642.49/90,603.23 = 44,997.21/x
  3. Step 3: Cross multiply
    65,642.49x = 90,603.23 × 44,997.21
  4. Step 4: Simplify right side
    65,642.49x = 4,076,892,342.00
  5. Step 5: Solve for x
    x = 4,076,892,342.00/65,642.49
  6. Step 6: Final answer
    x = 62,107.52

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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.