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Finding the Fourth Proportional to 262,053.80, 393,080.70 and 84,566.60

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Solution

The fourth proportional to 262,053.80, 393,080.70 and 84,566.60 is: 126,849.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,053.80 : 393,080.70 = 84,566.60 : x
  2. Step 2: Convert to fraction form
    262,053.80/393,080.70 = 84,566.60/x
  3. Step 3: Cross multiply
    262,053.80x = 393,080.70 × 84,566.60
  4. Step 4: Simplify right side
    262,053.80x = 33,241,498,324.62
  5. Step 5: Solve for x
    x = 33,241,498,324.62/262,053.80
  6. Step 6: Final answer
    x = 126,849.90

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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.