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Finding the Fourth Proportional to 131,802.80, 197,665.80 and 47,553.20

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Solution

The fourth proportional to 131,802.80, 197,665.80 and 47,553.20 is: 71,315.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,802.80 : 197,665.80 = 47,553.20 : x
  2. Step 2: Convert to fraction form
    131,802.80/197,665.80 = 47,553.20/x
  3. Step 3: Cross multiply
    131,802.80x = 197,665.80 × 47,553.20
  4. Step 4: Simplify right side
    131,802.80x = 9,399,641,320.56
  5. Step 5: Solve for x
    x = 9,399,641,320.56/131,802.80
  6. Step 6: Final answer
    x = 71,315.95

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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.