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Finding the Fourth Proportional to 339,955.04, 469,149.47 and 187,004.60

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Solution

The fourth proportional to 339,955.04, 469,149.47 and 187,004.60 is: 258,072.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,955.04 : 469,149.47 = 187,004.60 : x
  2. Step 2: Convert to fraction form
    339,955.04/469,149.47 = 187,004.60/x
  3. Step 3: Cross multiply
    339,955.04x = 469,149.47 × 187,004.60
  4. Step 4: Simplify right side
    339,955.04x = 87,733,105,696.79
  5. Step 5: Solve for x
    x = 87,733,105,696.79/339,955.04
  6. Step 6: Final answer
    x = 258,072.68

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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.