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Finding the Fourth Proportional to 228,445.50, 315,211.05 and 147,861.84

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Solution

The fourth proportional to 228,445.50, 315,211.05 and 147,861.84 is: 204,021.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,445.50 : 315,211.05 = 147,861.84 : x
  2. Step 2: Convert to fraction form
    228,445.50/315,211.05 = 147,861.84/x
  3. Step 3: Cross multiply
    228,445.50x = 315,211.05 × 147,861.84
  4. Step 4: Simplify right side
    228,445.50x = 46,607,685,841.33
  5. Step 5: Solve for x
    x = 46,607,685,841.33/228,445.50
  6. Step 6: Final answer
    x = 204,021.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.