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Finding the Fourth Proportional to 84,992,327.40, 127,488,491.10 and 27,490,411.20

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Solution

The fourth proportional to 84,992,327.40, 127,488,491.10 and 27,490,411.20 is: 41,235,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,992,327.40 : 127,488,491.10 = 27,490,411.20 : x
  2. Step 2: Convert to fraction form
    84,992,327.40/127,488,491.10 = 27,490,411.20/x
  3. Step 3: Cross multiply
    84,992,327.40x = 127,488,491.10 × 27,490,411.20
  4. Step 4: Simplify right side
    84,992,327.40x = 3,504,711,043,606,540
  5. Step 5: Solve for x
    x = 3,504,711,043,606,540/84,992,327.40
  6. Step 6: Final answer
    x = 41,235,616.80

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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.