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Finding the Fourth Proportional to 201,987,471.63, 302,990,208.17 and 61,917,606.03

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Solution

The fourth proportional to 201,987,471.63, 302,990,208.17 and 61,917,606.03 is: 92,879,168.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,987,471.63 : 302,990,208.17 = 61,917,606.03 : x
  2. Step 2: Convert to fraction form
    201,987,471.63/302,990,208.17 = 61,917,606.03/x
  3. Step 3: Cross multiply
    201,987,471.63x = 302,990,208.17 × 61,917,606.03
  4. Step 4: Simplify right side
    201,987,471.63x = 18,760,428,340,108,160
  5. Step 5: Solve for x
    x = 18,760,428,340,108,160/201,987,471.63
  6. Step 6: Final answer
    x = 92,879,168.14

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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.