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Finding the Fourth Proportional to 372,194.61, 558,521.55 and 172,477.77

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Solution

The fourth proportional to 372,194.61, 558,521.55 and 172,477.77 is: 258,823.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,194.61 : 558,521.55 = 172,477.77 : x
  2. Step 2: Convert to fraction form
    372,194.61/558,521.55 = 172,477.77/x
  3. Step 3: Cross multiply
    372,194.61x = 558,521.55 × 172,477.77
  4. Step 4: Simplify right side
    372,194.61x = 96,332,549,346.49
  5. Step 5: Solve for x
    x = 96,332,549,346.49/372,194.61
  6. Step 6: Final answer
    x = 258,823.07

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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.