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Finding the Fourth Proportional to 65,801,921.05, 90,809,487.48 and 36,433,253.44

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Solution

The fourth proportional to 65,801,921.05, 90,809,487.48 and 36,433,253.44 is: 50,279,460.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,801,921.05 : 90,809,487.48 = 36,433,253.44 : x
  2. Step 2: Convert to fraction form
    65,801,921.05/90,809,487.48 = 36,433,253.44/x
  3. Step 3: Cross multiply
    65,801,921.05x = 90,809,487.48 × 36,433,253.44
  4. Step 4: Simplify right side
    65,801,921.05x = 3,308,485,072,115,347
  5. Step 5: Solve for x
    x = 3,308,485,072,115,347/65,801,921.05
  6. Step 6: Final answer
    x = 50,279,460.22

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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.