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Finding the Fourth Proportional to 170,601.78, 255,793.16 and 70,830.84

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Solution

The fourth proportional to 170,601.78, 255,793.16 and 70,830.84 is: 106,200.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,601.78 : 255,793.16 = 70,830.84 : x
  2. Step 2: Convert to fraction form
    170,601.78/255,793.16 = 70,830.84/x
  3. Step 3: Cross multiply
    170,601.78x = 255,793.16 × 70,830.84
  4. Step 4: Simplify right side
    170,601.78x = 18,118,044,389.05
  5. Step 5: Solve for x
    x = 18,118,044,389.05/170,601.78
  6. Step 6: Final answer
    x = 106,200.79

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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.