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Finding the Fourth Proportional to 195,311.79, 292,991.12 and 68,925.94

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Solution

The fourth proportional to 195,311.79, 292,991.12 and 68,925.94 is: 103,397.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,311.79 : 292,991.12 = 68,925.94 : x
  2. Step 2: Convert to fraction form
    195,311.79/292,991.12 = 68,925.94/x
  3. Step 3: Cross multiply
    195,311.79x = 292,991.12 × 68,925.94
  4. Step 4: Simplify right side
    195,311.79x = 20,194,687,926.73
  5. Step 5: Solve for x
    x = 20,194,687,926.73/195,311.79
  6. Step 6: Final answer
    x = 103,397.18

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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.