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Finding the Fourth Proportional to 262,592.46, 393,789.06 and 85,051.80

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Solution

The fourth proportional to 262,592.46, 393,789.06 and 85,051.80 is: 127,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,592.46 : 393,789.06 = 85,051.80 : x
  2. Step 2: Convert to fraction form
    262,592.46/393,789.06 = 85,051.80/x
  3. Step 3: Cross multiply
    262,592.46x = 393,789.06 × 85,051.80
  4. Step 4: Simplify right side
    262,592.46x = 33,492,468,373.31
  5. Step 5: Solve for x
    x = 33,492,468,373.31/262,592.46
  6. Step 6: Final answer
    x = 127,545.43

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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.