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Finding the Fourth Proportional to 152,405.70, 228,608.55 and 149,489.70

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Solution

The fourth proportional to 152,405.70, 228,608.55 and 149,489.70 is: 224,234.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,405.70 : 228,608.55 = 149,489.70 : x
  2. Step 2: Convert to fraction form
    152,405.70/228,608.55 = 149,489.70/x
  3. Step 3: Cross multiply
    152,405.70x = 228,608.55 × 149,489.70
  4. Step 4: Simplify right side
    152,405.70x = 34,174,623,556.94
  5. Step 5: Solve for x
    x = 34,174,623,556.94/152,405.70
  6. Step 6: Final answer
    x = 224,234.55

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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.