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Finding the Fourth Proportional to 170,522.70, 255,638.24 and 65,417.10

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Solution

The fourth proportional to 170,522.70, 255,638.24 and 65,417.10 is: 98,069.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,522.70 : 255,638.24 = 65,417.10 : x
  2. Step 2: Convert to fraction form
    170,522.70/255,638.24 = 65,417.10/x
  3. Step 3: Cross multiply
    170,522.70x = 255,638.24 × 65,417.10
  4. Step 4: Simplify right side
    170,522.70x = 16,723,112,309.90
  5. Step 5: Solve for x
    x = 16,723,112,309.90/170,522.70
  6. Step 6: Final answer
    x = 98,069.71

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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.