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Finding the Fourth Proportional to 194,797.95, 292,209.90 and 68,422.83

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Solution

The fourth proportional to 194,797.95, 292,209.90 and 68,422.83 is: 102,638.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,797.95 : 292,209.90 = 68,422.83 : x
  2. Step 2: Convert to fraction form
    194,797.95/292,209.90 = 68,422.83/x
  3. Step 3: Cross multiply
    194,797.95x = 292,209.90 × 68,422.83
  4. Step 4: Simplify right side
    194,797.95x = 19,993,828,312.02
  5. Step 5: Solve for x
    x = 19,993,828,312.02/194,797.95
  6. Step 6: Final answer
    x = 102,638.80

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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.