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Finding the Fourth Proportional to 210,605.63, 315,908.44 and 62,861.63

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Solution

The fourth proportional to 210,605.63, 315,908.44 and 62,861.63 is: 94,292.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,605.63 : 315,908.44 = 62,861.63 : x
  2. Step 2: Convert to fraction form
    210,605.63/315,908.44 = 62,861.63/x
  3. Step 3: Cross multiply
    210,605.63x = 315,908.44 × 62,861.63
  4. Step 4: Simplify right side
    210,605.63x = 19,858,517,732.46
  5. Step 5: Solve for x
    x = 19,858,517,732.46/210,605.63
  6. Step 6: Final answer
    x = 94,292.44

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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.