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Finding the Fourth Proportional to 91,900,924.80, 126,823,276.80 and 50,647,817.76

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Solution

The fourth proportional to 91,900,924.80, 126,823,276.80 and 50,647,817.76 is: 69,893,988.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,900,924.80 : 126,823,276.80 = 50,647,817.76 : x
  2. Step 2: Convert to fraction form
    91,900,924.80/126,823,276.80 = 50,647,817.76/x
  3. Step 3: Cross multiply
    91,900,924.80x = 126,823,276.80 × 50,647,817.76
  4. Step 4: Simplify right side
    91,900,924.80x = 6,423,322,211,092,436
  5. Step 5: Solve for x
    x = 6,423,322,211,092,436/91,900,924.80
  6. Step 6: Final answer
    x = 69,893,988.83

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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.