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Finding the Fourth Proportional to 262,410.60, 393,713.10 and 84,923.40

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Solution

The fourth proportional to 262,410.60, 393,713.10 and 84,923.40 is: 127,416.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,410.60 : 393,713.10 = 84,923.40 : x
  2. Step 2: Convert to fraction form
    262,410.60/393,713.10 = 84,923.40/x
  3. Step 3: Cross multiply
    262,410.60x = 393,713.10 × 84,923.40
  4. Step 4: Simplify right side
    262,410.60x = 33,435,455,076.54
  5. Step 5: Solve for x
    x = 33,435,455,076.54/262,410.60
  6. Step 6: Final answer
    x = 127,416.56

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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.