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Finding the Fourth Proportional to 201,979,404.16, 303,023,080.69 and 72,588,135.29

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Solution

The fourth proportional to 201,979,404.16, 303,023,080.69 and 72,588,135.29 is: 108,901,600.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,979,404.16 : 303,023,080.69 = 72,588,135.29 : x
  2. Step 2: Convert to fraction form
    201,979,404.16/303,023,080.69 = 72,588,135.29/x
  3. Step 3: Cross multiply
    201,979,404.16x = 303,023,080.69 × 72,588,135.29
  4. Step 4: Simplify right side
    201,979,404.16x = 21,995,880,375,421,720
  5. Step 5: Solve for x
    x = 21,995,880,375,421,720/201,979,404.16
  6. Step 6: Final answer
    x = 108,901,600.47

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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.