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Finding the Fourth Proportional to 216,404.65, 324,625.43 and 56,501.80

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Solution

The fourth proportional to 216,404.65, 324,625.43 and 56,501.80 is: 84,757.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,404.65 : 324,625.43 = 56,501.80 : x
  2. Step 2: Convert to fraction form
    216,404.65/324,625.43 = 56,501.80/x
  3. Step 3: Cross multiply
    216,404.65x = 324,625.43 × 56,501.80
  4. Step 4: Simplify right side
    216,404.65x = 18,341,921,120.77
  5. Step 5: Solve for x
    x = 18,341,921,120.77/216,404.65
  6. Step 6: Final answer
    x = 84,757.52

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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.