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Finding the Fourth Proportional to 262,088.39, 393,132.59 and 84,621.54

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Solution

The fourth proportional to 262,088.39, 393,132.59 and 84,621.54 is: 126,932.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,088.39 : 393,132.59 = 84,621.54 : x
  2. Step 2: Convert to fraction form
    262,088.39/393,132.59 = 84,621.54/x
  3. Step 3: Cross multiply
    262,088.39x = 393,132.59 × 84,621.54
  4. Step 4: Simplify right side
    262,088.39x = 33,267,484,766.88
  5. Step 5: Solve for x
    x = 33,267,484,766.88/262,088.39
  6. Step 6: Final answer
    x = 126,932.31

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1.5x scale

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.