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Finding the Fourth Proportional to 276,053.74, 414,080.88 and 86,528.94

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Solution

The fourth proportional to 276,053.74, 414,080.88 and 86,528.94 is: 129,793.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,053.74 : 414,080.88 = 86,528.94 : x
  2. Step 2: Convert to fraction form
    276,053.74/414,080.88 = 86,528.94/x
  3. Step 3: Cross multiply
    276,053.74x = 414,080.88 × 86,528.94
  4. Step 4: Simplify right side
    276,053.74x = 35,829,979,620.67
  5. Step 5: Solve for x
    x = 35,829,979,620.67/276,053.74
  6. Step 6: Final answer
    x = 129,793.49

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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.