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Finding the Fourth Proportional to 218,894.70, 328,468.67 and 92,526.77

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Solution

The fourth proportional to 218,894.70, 328,468.67 and 92,526.77 is: 138,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,894.70 : 328,468.67 = 92,526.77 : x
  2. Step 2: Convert to fraction form
    218,894.70/328,468.67 = 92,526.77/x
  3. Step 3: Cross multiply
    218,894.70x = 328,468.67 × 92,526.77
  4. Step 4: Simplify right side
    218,894.70x = 30,392,145,786.81
  5. Step 5: Solve for x
    x = 30,392,145,786.81/218,894.70
  6. Step 6: Final answer
    x = 138,843.68

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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.