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Finding the Fourth Proportional to 121,336.20, 181,971.90 and 37,096.20

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Solution

The fourth proportional to 121,336.20, 181,971.90 and 37,096.20 is: 55,634.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,336.20 : 181,971.90 = 37,096.20 : x
  2. Step 2: Convert to fraction form
    121,336.20/181,971.90 = 37,096.20/x
  3. Step 3: Cross multiply
    121,336.20x = 181,971.90 × 37,096.20
  4. Step 4: Simplify right side
    121,336.20x = 6,750,465,996.78
  5. Step 5: Solve for x
    x = 6,750,465,996.78/121,336.20
  6. Step 6: Final answer
    x = 55,634.39

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1.5x scale

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.