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Finding the Fourth Proportional to 252,806.34, 379,116.48 and 102,965.28

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Solution

The fourth proportional to 252,806.34, 379,116.48 and 102,965.28 is: 154,410.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,806.34 : 379,116.48 = 102,965.28 : x
  2. Step 2: Convert to fraction form
    252,806.34/379,116.48 = 102,965.28/x
  3. Step 3: Cross multiply
    252,806.34x = 379,116.48 × 102,965.28
  4. Step 4: Simplify right side
    252,806.34x = 39,035,834,515.81
  5. Step 5: Solve for x
    x = 39,035,834,515.81/252,806.34
  6. Step 6: Final answer
    x = 154,410.03

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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.