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Finding the Fourth Proportional to 170,658.84, 256,102.52 and 70,819.13

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Solution

The fourth proportional to 170,658.84, 256,102.52 and 70,819.13 is: 106,276.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,658.84 : 256,102.52 = 70,819.13 : x
  2. Step 2: Convert to fraction form
    170,658.84/256,102.52 = 70,819.13/x
  3. Step 3: Cross multiply
    170,658.84x = 256,102.52 × 70,819.13
  4. Step 4: Simplify right side
    170,658.84x = 18,136,957,943.37
  5. Step 5: Solve for x
    x = 18,136,957,943.37/170,658.84
  6. Step 6: Final answer
    x = 106,276.11

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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.