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Finding the Fourth Proportional to 262,474.62, 393,774.65 and 84,981.83

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Solution

The fourth proportional to 262,474.62, 393,774.65 and 84,981.83 is: 127,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,474.62 : 393,774.65 = 84,981.83 : x
  2. Step 2: Convert to fraction form
    262,474.62/393,774.65 = 84,981.83/x
  3. Step 3: Cross multiply
    262,474.62x = 393,774.65 × 84,981.83
  4. Step 4: Simplify right side
    262,474.62x = 33,463,690,364.61
  5. Step 5: Solve for x
    x = 33,463,690,364.61/262,474.62
  6. Step 6: Final answer
    x = 127,493.05

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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.