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Finding the Fourth Proportional to 207,703.56, 311,555.22 and 49,931.97

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Solution

The fourth proportional to 207,703.56, 311,555.22 and 49,931.97 is: 74,897.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,703.56 : 311,555.22 = 49,931.97 : x
  2. Step 2: Convert to fraction form
    207,703.56/311,555.22 = 49,931.97/x
  3. Step 3: Cross multiply
    207,703.56x = 311,555.22 × 49,931.97
  4. Step 4: Simplify right side
    207,703.56x = 15,556,565,898.38
  5. Step 5: Solve for x
    x = 15,556,565,898.38/207,703.56
  6. Step 6: Final answer
    x = 74,897.93

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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.