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Finding the Fourth Proportional to 207,606.20, 310,703.19 and 127,601.98

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Solution

The fourth proportional to 207,606.20, 310,703.19 and 127,601.98 is: 190,968.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,606.20 : 310,703.19 = 127,601.98 : x
  2. Step 2: Convert to fraction form
    207,606.20/310,703.19 = 127,601.98/x
  3. Step 3: Cross multiply
    207,606.20x = 310,703.19 × 127,601.98
  4. Step 4: Simplify right side
    207,606.20x = 39,646,343,446.52
  5. Step 5: Solve for x
    x = 39,646,343,446.52/207,606.20
  6. Step 6: Final answer
    x = 190,968.97

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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.