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Finding the Fourth Proportional to 119,263, 164,617.50 and 79,519

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Solution

The fourth proportional to 119,263, 164,617.50 and 79,519 is: 109,759.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,263 : 164,617.50 = 79,519 : x
  2. Step 2: Convert to fraction form
    119,263/164,617.50 = 79,519/x
  3. Step 3: Cross multiply
    119,263x = 164,617.50 × 79,519
  4. Step 4: Simplify right side
    119,263x = 13,090,218,982.50
  5. Step 5: Solve for x
    x = 13,090,218,982.50/119,263
  6. Step 6: Final answer
    x = 109,759.26

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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.