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Finding the Fourth Proportional to 103,798.62, 155,691.45 and 41,424.30

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Solution

The fourth proportional to 103,798.62, 155,691.45 and 41,424.30 is: 62,133.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,798.62 : 155,691.45 = 41,424.30 : x
  2. Step 2: Convert to fraction form
    103,798.62/155,691.45 = 41,424.30/x
  3. Step 3: Cross multiply
    103,798.62x = 155,691.45 × 41,424.30
  4. Step 4: Simplify right side
    103,798.62x = 6,449,409,332.24
  5. Step 5: Solve for x
    x = 6,449,409,332.24/103,798.62
  6. Step 6: Final answer
    x = 62,133.86

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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.