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Finding the Fourth Proportional to 236,090.68, 325,795.67 and 128,658.41

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Solution

The fourth proportional to 236,090.68, 325,795.67 and 128,658.41 is: 177,543.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,090.68 : 325,795.67 = 128,658.41 : x
  2. Step 2: Convert to fraction form
    236,090.68/325,795.67 = 128,658.41/x
  3. Step 3: Cross multiply
    236,090.68x = 325,795.67 × 128,658.41
  4. Step 4: Simplify right side
    236,090.68x = 41,916,352,319.02
  5. Step 5: Solve for x
    x = 41,916,352,319.02/236,090.68
  6. Step 6: Final answer
    x = 177,543.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.