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Finding the Fourth Proportional to 69,957,101.52, 96,540,928.92 and 39,019,264.92

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Solution

The fourth proportional to 69,957,101.52, 96,540,928.92 and 39,019,264.92 is: 53,846,657.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,957,101.52 : 96,540,928.92 = 39,019,264.92 : x
  2. Step 2: Convert to fraction form
    69,957,101.52/96,540,928.92 = 39,019,264.92/x
  3. Step 3: Cross multiply
    69,957,101.52x = 96,540,928.92 × 39,019,264.92
  4. Step 4: Simplify right side
    69,957,101.52x = 3,766,956,081,152,369.50
  5. Step 5: Solve for x
    x = 3,766,956,081,152,369.50/69,957,101.52
  6. Step 6: Final answer
    x = 53,846,657.44

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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.