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Finding the Fourth Proportional to 161,441,720, 222,789,515.01 and 88,102,862

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Solution

The fourth proportional to 161,441,720, 222,789,515.01 and 88,102,862 is: 121,581,917.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,441,720 : 222,789,515.01 = 88,102,862 : x
  2. Step 2: Convert to fraction form
    161,441,720/222,789,515.01 = 88,102,862/x
  3. Step 3: Cross multiply
    161,441,720x = 222,789,515.01 × 88,102,862
  4. Step 4: Simplify right side
    161,441,720x = 19,628,393,895,972,956
  5. Step 5: Solve for x
    x = 19,628,393,895,972,956/161,441,720
  6. Step 6: Final answer
    x = 121,581,917.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.