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Finding the Fourth Proportional to 338,883.93, 507,995.39 and 161,343.27

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Solution

The fourth proportional to 338,883.93, 507,995.39 and 161,343.27 is: 241,857.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,883.93 : 507,995.39 = 161,343.27 : x
  2. Step 2: Convert to fraction form
    338,883.93/507,995.39 = 161,343.27/x
  3. Step 3: Cross multiply
    338,883.93x = 507,995.39 × 161,343.27
  4. Step 4: Simplify right side
    338,883.93x = 81,961,636,560.81
  5. Step 5: Solve for x
    x = 81,961,636,560.81/338,883.93
  6. Step 6: Final answer
    x = 241,857.55

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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.