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Finding the Fourth Proportional to 170,658.56, 256,102.10 and 70,818.84

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Solution

The fourth proportional to 170,658.56, 256,102.10 and 70,818.84 is: 106,275.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,658.56 : 256,102.10 = 70,818.84 : x
  2. Step 2: Convert to fraction form
    170,658.56/256,102.10 = 70,818.84/x
  3. Step 3: Cross multiply
    170,658.56x = 256,102.10 × 70,818.84
  4. Step 4: Simplify right side
    170,658.56x = 18,136,854,515.42
  5. Step 5: Solve for x
    x = 18,136,854,515.42/170,658.56
  6. Step 6: Final answer
    x = 106,275.68

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1.5x scale

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.