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Finding the Fourth Proportional to 133,039,390.40, 199,472,480.40 and 119,434,500.80

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Solution

The fourth proportional to 133,039,390.40, 199,472,480.40 and 119,434,500.80 is: 179,074,002.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,039,390.40 : 199,472,480.40 = 119,434,500.80 : x
  2. Step 2: Convert to fraction form
    133,039,390.40/199,472,480.40 = 119,434,500.80/x
  3. Step 3: Cross multiply
    133,039,390.40x = 199,472,480.40 × 119,434,500.80
  4. Step 4: Simplify right side
    133,039,390.40x = 23,823,896,119,911,784
  5. Step 5: Solve for x
    x = 23,823,896,119,911,784/133,039,390.40
  6. Step 6: Final answer
    x = 179,074,002.43

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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.