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Finding the Fourth Proportional to 194,758.60, 292,116.30 and 54,531.40

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Solution

The fourth proportional to 194,758.60, 292,116.30 and 54,531.40 is: 81,791.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,758.60 : 292,116.30 = 54,531.40 : x
  2. Step 2: Convert to fraction form
    194,758.60/292,116.30 = 54,531.40/x
  3. Step 3: Cross multiply
    194,758.60x = 292,116.30 × 54,531.40
  4. Step 4: Simplify right side
    194,758.60x = 15,929,510,801.82
  5. Step 5: Solve for x
    x = 15,929,510,801.82/194,758.60
  6. Step 6: Final answer
    x = 81,791.05

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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.