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Finding the Fourth Proportional to 218,668.89, 328,002.02 and 56,562.94

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Solution

The fourth proportional to 218,668.89, 328,002.02 and 56,562.94 is: 84,844.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,668.89 : 328,002.02 = 56,562.94 : x
  2. Step 2: Convert to fraction form
    218,668.89/328,002.02 = 56,562.94/x
  3. Step 3: Cross multiply
    218,668.89x = 328,002.02 × 56,562.94
  4. Step 4: Simplify right side
    218,668.89x = 18,552,758,577.14
  5. Step 5: Solve for x
    x = 18,552,758,577.14/218,668.89
  6. Step 6: Final answer
    x = 84,844.07

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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.