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Finding the Fourth Proportional to 171,859,404.80, 257,789,107.20 and 95,418,214.40

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Solution

The fourth proportional to 171,859,404.80, 257,789,107.20 and 95,418,214.40 is: 143,127,321.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,859,404.80 : 257,789,107.20 = 95,418,214.40 : x
  2. Step 2: Convert to fraction form
    171,859,404.80/257,789,107.20 = 95,418,214.40/x
  3. Step 3: Cross multiply
    171,859,404.80x = 257,789,107.20 × 95,418,214.40
  4. Step 4: Simplify right side
    171,859,404.80x = 24,597,776,300,794,184
  5. Step 5: Solve for x
    x = 24,597,776,300,794,184/171,859,404.80
  6. Step 6: Final answer
    x = 143,127,321.60

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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.