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Finding the Fourth Proportional to 365,093.10, 547,639.65 and 207,629.10

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Solution

The fourth proportional to 365,093.10, 547,639.65 and 207,629.10 is: 311,443.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,093.10 : 547,639.65 = 207,629.10 : x
  2. Step 2: Convert to fraction form
    365,093.10/547,639.65 = 207,629.10/x
  3. Step 3: Cross multiply
    365,093.10x = 547,639.65 × 207,629.10
  4. Step 4: Simplify right side
    365,093.10x = 113,705,927,653.82
  5. Step 5: Solve for x
    x = 113,705,927,653.82/365,093.10
  6. Step 6: Final answer
    x = 311,443.65

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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.