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Finding the Fourth Proportional to 496,924.80, 745,387.20 and 122,947.80

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Solution

The fourth proportional to 496,924.80, 745,387.20 and 122,947.80 is: 184,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,924.80 : 745,387.20 = 122,947.80 : x
  2. Step 2: Convert to fraction form
    496,924.80/745,387.20 = 122,947.80/x
  3. Step 3: Cross multiply
    496,924.80x = 745,387.20 × 122,947.80
  4. Step 4: Simplify right side
    496,924.80x = 91,643,716,388.16
  5. Step 5: Solve for x
    x = 91,643,716,388.16/496,924.80
  6. Step 6: Final answer
    x = 184,421.70

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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.