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Finding the Fourth Proportional to 237,309.31, 355,954.65 and 87,484.83

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Solution

The fourth proportional to 237,309.31, 355,954.65 and 87,484.83 is: 131,223.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,309.31 : 355,954.65 = 87,484.83 : x
  2. Step 2: Convert to fraction form
    237,309.31/355,954.65 = 87,484.83/x
  3. Step 3: Cross multiply
    237,309.31x = 355,954.65 × 87,484.83
  4. Step 4: Simplify right side
    237,309.31x = 31,140,632,042.96
  5. Step 5: Solve for x
    x = 31,140,632,042.96/237,309.31
  6. Step 6: Final answer
    x = 131,223.81

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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.