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Finding the Fourth Proportional to 237,039.93, 355,485.78 and 79,231.47

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Solution

The fourth proportional to 237,039.93, 355,485.78 and 79,231.47 is: 118,822.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,039.93 : 355,485.78 = 79,231.47 : x
  2. Step 2: Convert to fraction form
    237,039.93/355,485.78 = 79,231.47/x
  3. Step 3: Cross multiply
    237,039.93x = 355,485.78 × 79,231.47
  4. Step 4: Simplify right side
    237,039.93x = 28,165,660,913.50
  5. Step 5: Solve for x
    x = 28,165,660,913.50/237,039.93
  6. Step 6: Final answer
    x = 118,822.43

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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.