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Finding the Fourth Proportional to 228,140.75, 342,211.13 and 61,928.75

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Solution

The fourth proportional to 228,140.75, 342,211.13 and 61,928.75 is: 92,893.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,140.75 : 342,211.13 = 61,928.75 : x
  2. Step 2: Convert to fraction form
    228,140.75/342,211.13 = 61,928.75/x
  3. Step 3: Cross multiply
    228,140.75x = 342,211.13 × 61,928.75
  4. Step 4: Simplify right side
    228,140.75x = 21,192,707,516.99
  5. Step 5: Solve for x
    x = 21,192,707,516.99/228,140.75
  6. Step 6: Final answer
    x = 92,893.13

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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.