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Finding the Fourth Proportional to 118,522.40, 177,524.40 and 92,019.20

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Solution

The fourth proportional to 118,522.40, 177,524.40 and 92,019.20 is: 137,827.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,522.40 : 177,524.40 = 92,019.20 : x
  2. Step 2: Convert to fraction form
    118,522.40/177,524.40 = 92,019.20/x
  3. Step 3: Cross multiply
    118,522.40x = 177,524.40 × 92,019.20
  4. Step 4: Simplify right side
    118,522.40x = 16,335,653,268.48
  5. Step 5: Solve for x
    x = 16,335,653,268.48/118,522.40
  6. Step 6: Final answer
    x = 137,827.56

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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.