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Finding the Fourth Proportional to 228,392.20, 342,586.40 and 178,514.22

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Solution

The fourth proportional to 228,392.20, 342,586.40 and 178,514.22 is: 267,769.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,392.20 : 342,586.40 = 178,514.22 : x
  2. Step 2: Convert to fraction form
    228,392.20/342,586.40 = 178,514.22/x
  3. Step 3: Cross multiply
    228,392.20x = 342,586.40 × 178,514.22
  4. Step 4: Simplify right side
    228,392.20x = 61,156,544,424.89
  5. Step 5: Solve for x
    x = 61,156,544,424.89/228,392.20
  6. Step 6: Final answer
    x = 267,769.85

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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.