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Finding the Fourth Proportional to 342,815.73, 473,087.75 and 189,858.57

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Solution

The fourth proportional to 342,815.73, 473,087.75 and 189,858.57 is: 262,005.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,815.73 : 473,087.75 = 189,858.57 : x
  2. Step 2: Convert to fraction form
    342,815.73/473,087.75 = 189,858.57/x
  3. Step 3: Cross multiply
    342,815.73x = 473,087.75 × 189,858.57
  4. Step 4: Simplify right side
    342,815.73x = 89,819,762,750.22
  5. Step 5: Solve for x
    x = 89,819,762,750.22/342,815.73
  6. Step 6: Final answer
    x = 262,005.96

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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.