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Finding the Fourth Proportional to 201,009,700.20, 300,876,821.10 and 201,009,700.20

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Solution

The fourth proportional to 201,009,700.20, 300,876,821.10 and 201,009,700.20 is: 300,876,821.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,009,700.20 : 300,876,821.10 = 201,009,700.20 : x
  2. Step 2: Convert to fraction form
    201,009,700.20/300,876,821.10 = 201,009,700.20/x
  3. Step 3: Cross multiply
    201,009,700.20x = 300,876,821.10 × 201,009,700.20
  4. Step 4: Simplify right side
    201,009,700.20x = 60,479,159,606,440,032
  5. Step 5: Solve for x
    x = 60,479,159,606,440,032/201,009,700.20
  6. Step 6: Final answer
    x = 300,876,821.10

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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.