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Finding the Fourth Proportional to 73,057.36, 109,590.90 and 25,666.70

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Solution

The fourth proportional to 73,057.36, 109,590.90 and 25,666.70 is: 38,501.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,057.36 : 109,590.90 = 25,666.70 : x
  2. Step 2: Convert to fraction form
    73,057.36/109,590.90 = 25,666.70/x
  3. Step 3: Cross multiply
    73,057.36x = 109,590.90 × 25,666.70
  4. Step 4: Simplify right side
    73,057.36x = 2,812,836,753.03
  5. Step 5: Solve for x
    x = 2,812,836,753.03/73,057.36
  6. Step 6: Final answer
    x = 38,501.76

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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.