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Finding the Fourth Proportional to 192,787.66, 289,178.52 and 52,545.88

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Solution

The fourth proportional to 192,787.66, 289,178.52 and 52,545.88 is: 78,818.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,787.66 : 289,178.52 = 52,545.88 : x
  2. Step 2: Convert to fraction form
    192,787.66/289,178.52 = 52,545.88/x
  3. Step 3: Cross multiply
    192,787.66x = 289,178.52 × 52,545.88
  4. Step 4: Simplify right side
    192,787.66x = 15,195,139,810.50
  5. Step 5: Solve for x
    x = 15,195,139,810.50/192,787.66
  6. Step 6: Final answer
    x = 78,818.01

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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.