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Finding the Fourth Proportional to 109,992,313, 164,987,419.02 and 66,873,421

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Solution

The fourth proportional to 109,992,313, 164,987,419.02 and 66,873,421 is: 100,309,492.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,992,313 : 164,987,419.02 = 66,873,421 : x
  2. Step 2: Convert to fraction form
    109,992,313/164,987,419.02 = 66,873,421/x
  3. Step 3: Cross multiply
    109,992,313x = 164,987,419.02 × 66,873,421
  4. Step 4: Simplify right side
    109,992,313x = 11,033,273,131,827,868
  5. Step 5: Solve for x
    x = 11,033,273,131,827,868/109,992,313
  6. Step 6: Final answer
    x = 100,309,492.83

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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.