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Finding the Fourth Proportional to 276,655,652.55, 414,983,478.83 and 72,183,727.80

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Solution

The fourth proportional to 276,655,652.55, 414,983,478.83 and 72,183,727.80 is: 108,275,591.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,655,652.55 : 414,983,478.83 = 72,183,727.80 : x
  2. Step 2: Convert to fraction form
    276,655,652.55/414,983,478.83 = 72,183,727.80/x
  3. Step 3: Cross multiply
    276,655,652.55x = 414,983,478.83 × 72,183,727.80
  4. Step 4: Simplify right side
    276,655,652.55x = 29,955,054,477,000,860
  5. Step 5: Solve for x
    x = 29,955,054,477,000,860/276,655,652.55
  6. Step 6: Final answer
    x = 108,275,591.70

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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.