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Finding the Fourth Proportional to 141,081.62, 194,684.88 and 77,414.39

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Solution

The fourth proportional to 141,081.62, 194,684.88 and 77,414.39 is: 106,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,081.62 : 194,684.88 = 77,414.39 : x
  2. Step 2: Convert to fraction form
    141,081.62/194,684.88 = 77,414.39/x
  3. Step 3: Cross multiply
    141,081.62x = 194,684.88 × 77,414.39
  4. Step 4: Simplify right side
    141,081.62x = 15,071,411,227.42
  5. Step 5: Solve for x
    x = 15,071,411,227.42/141,081.62
  6. Step 6: Final answer
    x = 106,827.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.