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Finding the Fourth Proportional to 191,733,687.20, 287,600,530.80 and 133,062,600.80

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Solution

The fourth proportional to 191,733,687.20, 287,600,530.80 and 133,062,600.80 is: 199,593,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,733,687.20 : 287,600,530.80 = 133,062,600.80 : x
  2. Step 2: Convert to fraction form
    191,733,687.20/287,600,530.80 = 133,062,600.80/x
  3. Step 3: Cross multiply
    191,733,687.20x = 287,600,530.80 × 133,062,600.80
  4. Step 4: Simplify right side
    191,733,687.20x = 38,268,874,619,708,504
  5. Step 5: Solve for x
    x = 38,268,874,619,708,504/191,733,687.20
  6. Step 6: Final answer
    x = 199,593,901.20

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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.