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Finding the Fourth Proportional to 496,898.88, 745,348.31 and 122,921.88

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Solution

The fourth proportional to 496,898.88, 745,348.31 and 122,921.88 is: 184,382.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,898.88 : 745,348.31 = 122,921.88 : x
  2. Step 2: Convert to fraction form
    496,898.88/745,348.31 = 122,921.88/x
  3. Step 3: Cross multiply
    496,898.88x = 745,348.31 × 122,921.88
  4. Step 4: Simplify right side
    496,898.88x = 91,619,615,520.02
  5. Step 5: Solve for x
    x = 91,619,615,520.02/496,898.88
  6. Step 6: Final answer
    x = 184,382.82

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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.