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Finding the Fourth Proportional to 255,545.50, 352,638.12 and 146,626.78

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Solution

The fourth proportional to 255,545.50, 352,638.12 and 146,626.78 is: 202,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,545.50 : 352,638.12 = 146,626.78 : x
  2. Step 2: Convert to fraction form
    255,545.50/352,638.12 = 146,626.78/x
  3. Step 3: Cross multiply
    255,545.50x = 352,638.12 × 146,626.78
  4. Step 4: Simplify right side
    255,545.50x = 51,706,192,040.85
  5. Step 5: Solve for x
    x = 51,706,192,040.85/255,545.50
  6. Step 6: Final answer
    x = 202,336.54

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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.