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Finding the Fourth Proportional to 271,811,969.00, 407,643,542.27 and 75,028,339.97

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Solution

The fourth proportional to 271,811,969.00, 407,643,542.27 and 75,028,339.97 is: 112,521,970.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,811,969.00 : 407,643,542.27 = 75,028,339.97 : x
  2. Step 2: Convert to fraction form
    271,811,969.00/407,643,542.27 = 75,028,339.97/x
  3. Step 3: Cross multiply
    271,811,969.00x = 407,643,542.27 × 75,028,339.97
  4. Step 4: Simplify right side
    271,811,969.00x = 30,584,818,277,215,304
  5. Step 5: Solve for x
    x = 30,584,818,277,215,304/271,811,969.00
  6. Step 6: Final answer
    x = 112,521,970.21

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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.