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Finding the Fourth Proportional to 201,690,028.20, 302,535,042.30 and 201,690,028.20

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Solution

The fourth proportional to 201,690,028.20, 302,535,042.30 and 201,690,028.20 is: 302,535,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,690,028.20 : 302,535,042.30 = 201,690,028.20 : x
  2. Step 2: Convert to fraction form
    201,690,028.20/302,535,042.30 = 201,690,028.20/x
  3. Step 3: Cross multiply
    201,690,028.20x = 302,535,042.30 × 201,690,028.20
  4. Step 4: Simplify right side
    201,690,028.20x = 61,018,301,212,975,192
  5. Step 5: Solve for x
    x = 61,018,301,212,975,192/201,690,028.20
  6. Step 6: Final answer
    x = 302,535,042.30

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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.