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Finding the Fourth Proportional to 342,930.60, 473,239.10 and 189,968.33

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Solution

The fourth proportional to 342,930.60, 473,239.10 and 189,968.33 is: 262,153.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,930.60 : 473,239.10 = 189,968.33 : x
  2. Step 2: Convert to fraction form
    342,930.60/473,239.10 = 189,968.33/x
  3. Step 3: Cross multiply
    342,930.60x = 473,239.10 × 189,968.33
  4. Step 4: Simplify right side
    342,930.60x = 89,900,443,175.72
  5. Step 5: Solve for x
    x = 89,900,443,175.72/342,930.60
  6. Step 6: Final answer
    x = 262,153.46

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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.