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Finding the Fourth Proportional to 610,171.70, 915,247.74 and 189,447.98

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Solution

The fourth proportional to 610,171.70, 915,247.74 and 189,447.98 is: 284,168.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,171.70 : 915,247.74 = 189,447.98 : x
  2. Step 2: Convert to fraction form
    610,171.70/915,247.74 = 189,447.98/x
  3. Step 3: Cross multiply
    610,171.70x = 915,247.74 × 189,447.98
  4. Step 4: Simplify right side
    610,171.70x = 173,391,835,542.57
  5. Step 5: Solve for x
    x = 173,391,835,542.57/610,171.70
  6. Step 6: Final answer
    x = 284,168.92

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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.