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Finding the Fourth Proportional to 103,663.15, 155,497.16 and 37,107.88

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Solution

The fourth proportional to 103,663.15, 155,497.16 and 37,107.88 is: 55,662.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,663.15 : 155,497.16 = 37,107.88 : x
  2. Step 2: Convert to fraction form
    103,663.15/155,497.16 = 37,107.88/x
  3. Step 3: Cross multiply
    103,663.15x = 155,497.16 × 37,107.88
  4. Step 4: Simplify right side
    103,663.15x = 5,770,169,953.62
  5. Step 5: Solve for x
    x = 5,770,169,953.62/103,663.15
  6. Step 6: Final answer
    x = 55,662.69

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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.