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Finding the Fourth Proportional to 194,690.40, 292,132.80 and 110,515.20

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Solution

The fourth proportional to 194,690.40, 292,132.80 and 110,515.20 is: 165,827.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,690.40 : 292,132.80 = 110,515.20 : x
  2. Step 2: Convert to fraction form
    194,690.40/292,132.80 = 110,515.20/x
  3. Step 3: Cross multiply
    194,690.40x = 292,132.80 × 110,515.20
  4. Step 4: Simplify right side
    194,690.40x = 32,285,114,818.56
  5. Step 5: Solve for x
    x = 32,285,114,818.56/194,690.40
  6. Step 6: Final answer
    x = 165,827.98

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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.