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Finding the Fourth Proportional to 96,689.70, 144,982.31 and 37,509.48

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Solution

The fourth proportional to 96,689.70, 144,982.31 and 37,509.48 is: 56,243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,689.70 : 144,982.31 = 37,509.48 : x
  2. Step 2: Convert to fraction form
    96,689.70/144,982.31 = 37,509.48/x
  3. Step 3: Cross multiply
    96,689.70x = 144,982.31 × 37,509.48
  4. Step 4: Simplify right side
    96,689.70x = 5,438,210,869.75
  5. Step 5: Solve for x
    x = 5,438,210,869.75/96,689.70
  6. Step 6: Final answer
    x = 56,243.95

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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.