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Finding the Fourth Proportional to 116,640,608.80, 174,960,913.20 and 82,600,391.20

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Solution

The fourth proportional to 116,640,608.80, 174,960,913.20 and 82,600,391.20 is: 123,900,586.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,640,608.80 : 174,960,913.20 = 82,600,391.20 : x
  2. Step 2: Convert to fraction form
    116,640,608.80/174,960,913.20 = 82,600,391.20/x
  3. Step 3: Cross multiply
    116,640,608.80x = 174,960,913.20 × 82,600,391.20
  4. Step 4: Simplify right side
    116,640,608.80x = 14,451,839,875,029,244
  5. Step 5: Solve for x
    x = 14,451,839,875,029,244/116,640,608.80
  6. Step 6: Final answer
    x = 123,900,586.80

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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.