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Finding the Fourth Proportional to 71,812.80, 107,651.04 and 25,053.12

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Solution

The fourth proportional to 71,812.80, 107,651.04 and 25,053.12 is: 37,555.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,812.80 : 107,651.04 = 25,053.12 : x
  2. Step 2: Convert to fraction form
    71,812.80/107,651.04 = 25,053.12/x
  3. Step 3: Cross multiply
    71,812.80x = 107,651.04 × 25,053.12
  4. Step 4: Simplify right side
    71,812.80x = 2,696,994,423.24
  5. Step 5: Solve for x
    x = 2,696,994,423.24/71,812.80
  6. Step 6: Final answer
    x = 37,555.90

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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.