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Finding the Fourth Proportional to 78,787.96, 118,182.96 and 26,197.44

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Solution

The fourth proportional to 78,787.96, 118,182.96 and 26,197.44 is: 39,296.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,787.96 : 118,182.96 = 26,197.44 : x
  2. Step 2: Convert to fraction form
    78,787.96/118,182.96 = 26,197.44/x
  3. Step 3: Cross multiply
    78,787.96x = 118,182.96 × 26,197.44
  4. Step 4: Simplify right side
    78,787.96x = 3,096,091,274.34
  5. Step 5: Solve for x
    x = 3,096,091,274.34/78,787.96
  6. Step 6: Final answer
    x = 39,296.50

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Similar ratio
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1.5x scale

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.