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Finding the Fourth Proportional to 73,662,940.80, 110,494,411.20 and 57,400,846.20

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Solution

The fourth proportional to 73,662,940.80, 110,494,411.20 and 57,400,846.20 is: 86,101,269.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,662,940.80 : 110,494,411.20 = 57,400,846.20 : x
  2. Step 2: Convert to fraction form
    73,662,940.80/110,494,411.20 = 57,400,846.20/x
  3. Step 3: Cross multiply
    73,662,940.80x = 110,494,411.20 × 57,400,846.20
  4. Step 4: Simplify right side
    73,662,940.80x = 6,342,472,703,250,758
  5. Step 5: Solve for x
    x = 6,342,472,703,250,758/73,662,940.80
  6. Step 6: Final answer
    x = 86,101,269.30

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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.