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Finding the Fourth Proportional to 207,612.65, 311,418.98 and 49,841.10

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Solution

The fourth proportional to 207,612.65, 311,418.98 and 49,841.10 is: 74,761.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,612.65 : 311,418.98 = 49,841.10 : x
  2. Step 2: Convert to fraction form
    207,612.65/311,418.98 = 49,841.10/x
  3. Step 3: Cross multiply
    207,612.65x = 311,418.98 × 49,841.10
  4. Step 4: Simplify right side
    207,612.65x = 15,521,464,274.87
  5. Step 5: Solve for x
    x = 15,521,464,274.87/207,612.65
  6. Step 6: Final answer
    x = 74,761.65

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1.5x scale

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.