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Finding the Fourth Proportional to 372,196.61, 558,524.55 and 172,479.77

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Solution

The fourth proportional to 372,196.61, 558,524.55 and 172,479.77 is: 258,826.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,196.61 : 558,524.55 = 172,479.77 : x
  2. Step 2: Convert to fraction form
    372,196.61/558,524.55 = 172,479.77/x
  3. Step 3: Cross multiply
    372,196.61x = 558,524.55 × 172,479.77
  4. Step 4: Simplify right side
    372,196.61x = 96,334,185,923.35
  5. Step 5: Solve for x
    x = 96,334,185,923.35/372,196.61
  6. Step 6: Final answer
    x = 258,826.07

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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.