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Finding the Fourth Proportional to 237,039.76, 355,485.52 and 79,231.31

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Solution

The fourth proportional to 237,039.76, 355,485.52 and 79,231.31 is: 118,822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,039.76 : 355,485.52 = 79,231.31 : x
  2. Step 2: Convert to fraction form
    237,039.76/355,485.52 = 79,231.31/x
  3. Step 3: Cross multiply
    237,039.76x = 355,485.52 × 79,231.31
  4. Step 4: Simplify right side
    237,039.76x = 28,165,583,435.63
  5. Step 5: Solve for x
    x = 28,165,583,435.63/237,039.76
  6. Step 6: Final answer
    x = 118,822.19

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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.