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Finding the Fourth Proportional to 333,782.16, 500,667.77 and 81,064.73

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Solution

The fourth proportional to 333,782.16, 500,667.77 and 81,064.73 is: 121,595.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,782.16 : 500,667.77 = 81,064.73 : x
  2. Step 2: Convert to fraction form
    333,782.16/500,667.77 = 81,064.73/x
  3. Step 3: Cross multiply
    333,782.16x = 500,667.77 × 81,064.73
  4. Step 4: Simplify right side
    333,782.16x = 40,586,494,686.09
  5. Step 5: Solve for x
    x = 40,586,494,686.09/333,782.16
  6. Step 6: Final answer
    x = 121,595.76

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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.