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Finding the Fourth Proportional to 72,914,364.60, 109,413,537.30 and 27,508,745.40

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Solution

The fourth proportional to 72,914,364.60, 109,413,537.30 and 27,508,745.40 is: 41,278,960.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,914,364.60 : 109,413,537.30 = 27,508,745.40 : x
  2. Step 2: Convert to fraction form
    72,914,364.60/109,413,537.30 = 27,508,745.40/x
  3. Step 3: Cross multiply
    72,914,364.60x = 109,413,537.30 × 27,508,745.40
  4. Step 4: Simplify right side
    72,914,364.60x = 3,009,829,140,899,103
  5. Step 5: Solve for x
    x = 3,009,829,140,899,103/72,914,364.60
  6. Step 6: Final answer
    x = 41,278,960.02

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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.