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Finding the Fourth Proportional to 161,172.90, 241,675.92 and 72,349.92

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Solution

The fourth proportional to 161,172.90, 241,675.92 and 72,349.92 is: 108,487.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,172.90 : 241,675.92 = 72,349.92 : x
  2. Step 2: Convert to fraction form
    161,172.90/241,675.92 = 72,349.92/x
  3. Step 3: Cross multiply
    161,172.90x = 241,675.92 × 72,349.92
  4. Step 4: Simplify right side
    161,172.90x = 17,485,233,477.93
  5. Step 5: Solve for x
    x = 17,485,233,477.93/161,172.90
  6. Step 6: Final answer
    x = 108,487.43

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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.