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Finding the Fourth Proportional to 94,405.94, 141,696.42 and 47,691.62

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Solution

The fourth proportional to 94,405.94, 141,696.42 and 47,691.62 is: 71,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,405.94 : 141,696.42 = 47,691.62 : x
  2. Step 2: Convert to fraction form
    94,405.94/141,696.42 = 47,691.62/x
  3. Step 3: Cross multiply
    94,405.94x = 141,696.42 × 47,691.62
  4. Step 4: Simplify right side
    94,405.94x = 6,757,731,818.00
  5. Step 5: Solve for x
    x = 6,757,731,818.00/94,405.94
  6. Step 6: Final answer
    x = 71,581.64

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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.