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Finding the Fourth Proportional to 276,000.84, 414,001.26 and 86,462.82

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Solution

The fourth proportional to 276,000.84, 414,001.26 and 86,462.82 is: 129,694.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,000.84 : 414,001.26 = 86,462.82 : x
  2. Step 2: Convert to fraction form
    276,000.84/414,001.26 = 86,462.82/x
  3. Step 3: Cross multiply
    276,000.84x = 414,001.26 × 86,462.82
  4. Step 4: Simplify right side
    276,000.84x = 35,795,716,423.15
  5. Step 5: Solve for x
    x = 35,795,716,423.15/276,000.84
  6. Step 6: Final answer
    x = 129,694.23

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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.