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Finding the Fourth Proportional to 161,679.90, 242,556.30 and 49,365.30

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Solution

The fourth proportional to 161,679.90, 242,556.30 and 49,365.30 is: 74,059.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,679.90 : 242,556.30 = 49,365.30 : x
  2. Step 2: Convert to fraction form
    161,679.90/242,556.30 = 49,365.30/x
  3. Step 3: Cross multiply
    161,679.90x = 242,556.30 × 49,365.30
  4. Step 4: Simplify right side
    161,679.90x = 11,973,864,516.39
  5. Step 5: Solve for x
    x = 11,973,864,516.39/161,679.90
  6. Step 6: Final answer
    x = 74,059.08

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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.