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Finding the Fourth Proportional to 159,651,012.80, 239,476,519.20 and 159,651,012.80

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Solution

The fourth proportional to 159,651,012.80, 239,476,519.20 and 159,651,012.80 is: 239,476,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,651,012.80 : 239,476,519.20 = 159,651,012.80 : x
  2. Step 2: Convert to fraction form
    159,651,012.80/239,476,519.20 = 159,651,012.80/x
  3. Step 3: Cross multiply
    159,651,012.80x = 239,476,519.20 × 159,651,012.80
  4. Step 4: Simplify right side
    159,651,012.80x = 38,232,668,832,098,648
  5. Step 5: Solve for x
    x = 38,232,668,832,098,648/159,651,012.80
  6. Step 6: Final answer
    x = 239,476,519.20

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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.