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Finding the Fourth Proportional to 103,674.68, 155,514.42 and 37,119.40

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Solution

The fourth proportional to 103,674.68, 155,514.42 and 37,119.40 is: 55,679.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,674.68 : 155,514.42 = 37,119.40 : x
  2. Step 2: Convert to fraction form
    103,674.68/155,514.42 = 37,119.40/x
  3. Step 3: Cross multiply
    103,674.68x = 155,514.42 × 37,119.40
  4. Step 4: Simplify right side
    103,674.68x = 5,772,601,961.75
  5. Step 5: Solve for x
    x = 5,772,601,961.75/103,674.68
  6. Step 6: Final answer
    x = 55,679.96

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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.