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Finding the Fourth Proportional to 171,907.44, 258,030.87 and 129,063.86

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Solution

The fourth proportional to 171,907.44, 258,030.87 and 129,063.86 is: 193,723.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,907.44 : 258,030.87 = 129,063.86 : x
  2. Step 2: Convert to fraction form
    171,907.44/258,030.87 = 129,063.86/x
  3. Step 3: Cross multiply
    171,907.44x = 258,030.87 × 129,063.86
  4. Step 4: Simplify right side
    171,907.44x = 33,302,458,549.12
  5. Step 5: Solve for x
    x = 33,302,458,549.12/171,907.44
  6. Step 6: Final answer
    x = 193,723.19

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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.