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Finding the Fourth Proportional to 103,632.70, 155,449.05 and 37,078.04

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Solution

The fourth proportional to 103,632.70, 155,449.05 and 37,078.04 is: 55,617.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,632.70 : 155,449.05 = 37,078.04 : x
  2. Step 2: Convert to fraction form
    103,632.70/155,449.05 = 37,078.04/x
  3. Step 3: Cross multiply
    103,632.70x = 155,449.05 × 37,078.04
  4. Step 4: Simplify right side
    103,632.70x = 5,763,746,093.86
  5. Step 5: Solve for x
    x = 5,763,746,093.86/103,632.70
  6. Step 6: Final answer
    x = 55,617.06

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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.