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Finding the Fourth Proportional to 496,897.88, 745,346.81 and 122,920.88

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Solution

The fourth proportional to 496,897.88, 745,346.81 and 122,920.88 is: 184,381.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,897.88 : 745,346.81 = 122,920.88 : x
  2. Step 2: Convert to fraction form
    496,897.88/745,346.81 = 122,920.88/x
  3. Step 3: Cross multiply
    496,897.88x = 745,346.81 × 122,920.88
  4. Step 4: Simplify right side
    496,897.88x = 91,618,682,370.96
  5. Step 5: Solve for x
    x = 91,618,682,370.96/496,897.88
  6. Step 6: Final answer
    x = 184,381.31

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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.