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Finding the Fourth Proportional to 207,710.91, 311,566.37 and 49,939.37

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Solution

The fourth proportional to 207,710.91, 311,566.37 and 49,939.37 is: 74,909.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,710.91 : 311,566.37 = 49,939.37 : x
  2. Step 2: Convert to fraction form
    207,710.91/311,566.37 = 49,939.37/x
  3. Step 3: Cross multiply
    207,710.91x = 311,566.37 × 49,939.37
  4. Step 4: Simplify right side
    207,710.91x = 15,559,426,423.46
  5. Step 5: Solve for x
    x = 15,559,426,423.46/207,710.91
  6. Step 6: Final answer
    x = 74,909.05

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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.