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Finding the Fourth Proportional to 341,997.81, 513,051.83 and 105,340.38

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Solution

The fourth proportional to 341,997.81, 513,051.83 and 105,340.38 is: 158,027.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,997.81 : 513,051.83 = 105,340.38 : x
  2. Step 2: Convert to fraction form
    341,997.81/513,051.83 = 105,340.38/x
  3. Step 3: Cross multiply
    341,997.81x = 513,051.83 × 105,340.38
  4. Step 4: Simplify right side
    341,997.81x = 54,045,072,166.64
  5. Step 5: Solve for x
    x = 54,045,072,166.64/341,997.81
  6. Step 6: Final answer
    x = 158,027.54

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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.