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Finding the Fourth Proportional to 216,051.34, 298,204.20 and 131,239.48

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Solution

The fourth proportional to 216,051.34, 298,204.20 and 131,239.48 is: 181,142.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,051.34 : 298,204.20 = 131,239.48 : x
  2. Step 2: Convert to fraction form
    216,051.34/298,204.20 = 131,239.48/x
  3. Step 3: Cross multiply
    216,051.34x = 298,204.20 × 131,239.48
  4. Step 4: Simplify right side
    216,051.34x = 39,136,164,141.82
  5. Step 5: Solve for x
    x = 39,136,164,141.82/216,051.34
  6. Step 6: Final answer
    x = 181,142.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.