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Finding the Fourth Proportional to 126,251,919.64, 174,347,978.06 and 119,373,793.70

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Solution

The fourth proportional to 126,251,919.64, 174,347,978.06 and 119,373,793.70 is: 164,849,608.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,251,919.64 : 174,347,978.06 = 119,373,793.70 : x
  2. Step 2: Convert to fraction form
    126,251,919.64/174,347,978.06 = 119,373,793.70/x
  3. Step 3: Cross multiply
    126,251,919.64x = 174,347,978.06 × 119,373,793.70
  4. Step 4: Simplify right side
    126,251,919.64x = 20,812,579,564,946,568
  5. Step 5: Solve for x
    x = 20,812,579,564,946,568/126,251,919.64
  6. Step 6: Final answer
    x = 164,849,608.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.