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Finding the Fourth Proportional to 252,956.48, 349,084.52 and 138,239.98

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Solution

The fourth proportional to 252,956.48, 349,084.52 and 138,239.98 is: 190,773.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,956.48 : 349,084.52 = 138,239.98 : x
  2. Step 2: Convert to fraction form
    252,956.48/349,084.52 = 138,239.98/x
  3. Step 3: Cross multiply
    252,956.48x = 349,084.52 × 138,239.98
  4. Step 4: Simplify right side
    252,956.48x = 48,257,436,017.60
  5. Step 5: Solve for x
    x = 48,257,436,017.60/252,956.48
  6. Step 6: Final answer
    x = 190,773.67

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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.