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Finding the Fourth Proportional to 235,644,856.56, 353,487,745.44 and 71,919,485.28

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Solution

The fourth proportional to 235,644,856.56, 353,487,745.44 and 71,919,485.28 is: 107,885,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,644,856.56 : 353,487,745.44 = 71,919,485.28 : x
  2. Step 2: Convert to fraction form
    235,644,856.56/353,487,745.44 = 71,919,485.28/x
  3. Step 3: Cross multiply
    235,644,856.56x = 353,487,745.44 × 71,919,485.28
  4. Step 4: Simplify right side
    235,644,856.56x = 25,422,656,704,832,468
  5. Step 5: Solve for x
    x = 25,422,656,704,832,468/235,644,856.56
  6. Step 6: Final answer
    x = 107,885,472.55

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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.