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Finding the Fourth Proportional to 94,599.60, 141,991.72 and 78,127.44

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Solution

The fourth proportional to 94,599.60, 141,991.72 and 78,127.44 is: 117,267.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,599.60 : 141,991.72 = 78,127.44 : x
  2. Step 2: Convert to fraction form
    94,599.60/141,991.72 = 78,127.44/x
  3. Step 3: Cross multiply
    94,599.60x = 141,991.72 × 78,127.44
  4. Step 4: Simplify right side
    94,599.60x = 11,093,449,584.80
  5. Step 5: Solve for x
    x = 11,093,449,584.80/94,599.60
  6. Step 6: Final answer
    x = 117,267.40

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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.