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Finding the Fourth Proportional to 66,150.98, 99,243.17 and 28,701.95

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Solution

The fourth proportional to 66,150.98, 99,243.17 and 28,701.95 is: 43,060.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,150.98 : 99,243.17 = 28,701.95 : x
  2. Step 2: Convert to fraction form
    66,150.98/99,243.17 = 28,701.95/x
  3. Step 3: Cross multiply
    66,150.98x = 99,243.17 × 28,701.95
  4. Step 4: Simplify right side
    66,150.98x = 2,848,472,132.54
  5. Step 5: Solve for x
    x = 2,848,472,132.54/66,150.98
  6. Step 6: Final answer
    x = 43,060.17

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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.