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Finding the Fourth Proportional to 111,341, 166,593 and 78,125.88

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Solution

The fourth proportional to 111,341, 166,593 and 78,125.88 is: 116,895.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,341 : 166,593 = 78,125.88 : x
  2. Step 2: Convert to fraction form
    111,341/166,593 = 78,125.88/x
  3. Step 3: Cross multiply
    111,341x = 166,593 × 78,125.88
  4. Step 4: Simplify right side
    111,341x = 13,015,224,726.84
  5. Step 5: Solve for x
    x = 13,015,224,726.84/111,341
  6. Step 6: Final answer
    x = 116,895.17

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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.