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Finding the Fourth Proportional to 372,193.48, 558,519.86 and 172,476.64

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Solution

The fourth proportional to 372,193.48, 558,519.86 and 172,476.64 is: 258,821.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,193.48 : 558,519.86 = 172,476.64 : x
  2. Step 2: Convert to fraction form
    372,193.48/558,519.86 = 172,476.64/x
  3. Step 3: Cross multiply
    372,193.48x = 558,519.86 × 172,476.64
  4. Step 4: Simplify right side
    372,193.48x = 96,331,628,985.23
  5. Step 5: Solve for x
    x = 96,331,628,985.23/372,193.48
  6. Step 6: Final answer
    x = 258,821.38

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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.