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Finding the Fourth Proportional to 170,658.93, 256,102.67 and 70,819.22

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Solution

The fourth proportional to 170,658.93, 256,102.67 and 70,819.22 is: 106,276.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,658.93 : 256,102.67 = 70,819.22 : x
  2. Step 2: Convert to fraction form
    170,658.93/256,102.67 = 70,819.22/x
  3. Step 3: Cross multiply
    170,658.93x = 256,102.67 × 70,819.22
  4. Step 4: Simplify right side
    170,658.93x = 18,136,991,615.48
  5. Step 5: Solve for x
    x = 18,136,991,615.48/170,658.93
  6. Step 6: Final answer
    x = 106,276.25

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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.