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Finding the Fourth Proportional to 252,063.90, 347,872.70 and 188,290.98

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Solution

The fourth proportional to 252,063.90, 347,872.70 and 188,290.98 is: 259,859.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,063.90 : 347,872.70 = 188,290.98 : x
  2. Step 2: Convert to fraction form
    252,063.90/347,872.70 = 188,290.98/x
  3. Step 3: Cross multiply
    252,063.90x = 347,872.70 × 188,290.98
  4. Step 4: Simplify right side
    252,063.90x = 65,501,291,598.25
  5. Step 5: Solve for x
    x = 65,501,291,598.25/252,063.90
  6. Step 6: Final answer
    x = 259,859.87

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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.