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Finding the Fourth Proportional to 164,857,712.40, 247,322,435.40 and 49,839,251.40

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Solution

The fourth proportional to 164,857,712.40, 247,322,435.40 and 49,839,251.40 is: 74,769,720.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,857,712.40 : 247,322,435.40 = 49,839,251.40 : x
  2. Step 2: Convert to fraction form
    164,857,712.40/247,322,435.40 = 49,839,251.40/x
  3. Step 3: Cross multiply
    164,857,712.40x = 247,322,435.40 × 49,839,251.40
  4. Step 4: Simplify right side
    164,857,712.40x = 12,326,365,034,760,860
  5. Step 5: Solve for x
    x = 12,326,365,034,760,860/164,857,712.40
  6. Step 6: Final answer
    x = 74,769,720.24

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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.