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Finding the Fourth Proportional to 121,297.53, 181,093.40 and 92,684.74

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Solution

The fourth proportional to 121,297.53, 181,093.40 and 92,684.74 is: 138,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,297.53 : 181,093.40 = 92,684.74 : x
  2. Step 2: Convert to fraction form
    121,297.53/181,093.40 = 92,684.74/x
  3. Step 3: Cross multiply
    121,297.53x = 181,093.40 × 92,684.74
  4. Step 4: Simplify right side
    121,297.53x = 16,784,593,789.25
  5. Step 5: Solve for x
    x = 16,784,593,789.25/121,297.53
  6. Step 6: Final answer
    x = 138,375.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.