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Finding the Fourth Proportional to 122,682,663.20, 183,867,697.20 and 65,202,471.20

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Solution

The fourth proportional to 122,682,663.20, 183,867,697.20 and 65,202,471.20 is: 97,720,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,682,663.20 : 183,867,697.20 = 65,202,471.20 : x
  2. Step 2: Convert to fraction form
    122,682,663.20/183,867,697.20 = 65,202,471.20/x
  3. Step 3: Cross multiply
    122,682,663.20x = 183,867,697.20 × 65,202,471.20
  4. Step 4: Simplify right side
    122,682,663.20x = 11,988,628,231,293,320
  5. Step 5: Solve for x
    x = 11,988,628,231,293,320/122,682,663.20
  6. Step 6: Final answer
    x = 97,720,638.91

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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.