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Finding the Fourth Proportional to 101,969.29, 152,901.39 and 45,761.21

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Solution

The fourth proportional to 101,969.29, 152,901.39 and 45,761.21 is: 68,618.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,969.29 : 152,901.39 = 45,761.21 : x
  2. Step 2: Convert to fraction form
    101,969.29/152,901.39 = 45,761.21/x
  3. Step 3: Cross multiply
    101,969.29x = 152,901.39 × 45,761.21
  4. Step 4: Simplify right side
    101,969.29x = 6,996,952,963.24
  5. Step 5: Solve for x
    x = 6,996,952,963.24/101,969.29
  6. Step 6: Final answer
    x = 68,618.24

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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.