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Finding the Fourth Proportional to 394,900.74, 592,440.24 and 125,045.25

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Solution

The fourth proportional to 394,900.74, 592,440.24 and 125,045.25 is: 187,596.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,900.74 : 592,440.24 = 125,045.25 : x
  2. Step 2: Convert to fraction form
    394,900.74/592,440.24 = 125,045.25/x
  3. Step 3: Cross multiply
    394,900.74x = 592,440.24 × 125,045.25
  4. Step 4: Simplify right side
    394,900.74x = 74,081,837,920.86
  5. Step 5: Solve for x
    x = 74,081,837,920.86/394,900.74
  6. Step 6: Final answer
    x = 187,596.10

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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.