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Finding the Fourth Proportional to 66,625.88, 92,019.30 and 45,368.24

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Solution

The fourth proportional to 66,625.88, 92,019.30 and 45,368.24 is: 62,659.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,625.88 : 92,019.30 = 45,368.24 : x
  2. Step 2: Convert to fraction form
    66,625.88/92,019.30 = 45,368.24/x
  3. Step 3: Cross multiply
    66,625.88x = 92,019.30 × 45,368.24
  4. Step 4: Simplify right side
    66,625.88x = 4,174,753,687.03
  5. Step 5: Solve for x
    x = 4,174,753,687.03/66,625.88
  6. Step 6: Final answer
    x = 62,659.64

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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.