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Finding the Fourth Proportional to 207,710.66, 311,565.99 and 49,939.11

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Solution

The fourth proportional to 207,710.66, 311,565.99 and 49,939.11 is: 74,908.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,710.66 : 311,565.99 = 49,939.11 : x
  2. Step 2: Convert to fraction form
    207,710.66/311,565.99 = 49,939.11/x
  3. Step 3: Cross multiply
    207,710.66x = 311,565.99 × 49,939.11
  4. Step 4: Simplify right side
    207,710.66x = 15,559,328,246.87
  5. Step 5: Solve for x
    x = 15,559,328,246.87/207,710.66
  6. Step 6: Final answer
    x = 74,908.67

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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.