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Finding the Fourth Proportional to 388,668.57, 583,081.22 and 164,029.25

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Solution

The fourth proportional to 388,668.57, 583,081.22 and 164,029.25 is: 246,076.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,668.57 : 583,081.22 = 164,029.25 : x
  2. Step 2: Convert to fraction form
    388,668.57/583,081.22 = 164,029.25/x
  3. Step 3: Cross multiply
    388,668.57x = 583,081.22 × 164,029.25
  4. Step 4: Simplify right side
    388,668.57x = 95,642,372,700.35
  5. Step 5: Solve for x
    x = 95,642,372,700.35/388,668.57
  6. Step 6: Final answer
    x = 246,076.94

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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.