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Finding the Fourth Proportional to 372,384.67, 558,139.61 and 172,282.37

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Solution

The fourth proportional to 372,384.67, 558,139.61 and 172,282.37 is: 258,221.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,384.67 : 558,139.61 = 172,282.37 : x
  2. Step 2: Convert to fraction form
    372,384.67/558,139.61 = 172,282.37/x
  3. Step 3: Cross multiply
    372,384.67x = 558,139.61 × 172,282.37
  4. Step 4: Simplify right side
    372,384.67x = 96,157,613,940.26
  5. Step 5: Solve for x
    x = 96,157,613,940.26/372,384.67
  6. Step 6: Final answer
    x = 258,221.19

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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.