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Finding the Fourth Proportional to 111,383.84, 153,653.59 and 79,571.19

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Solution

The fourth proportional to 111,383.84, 153,653.59 and 79,571.19 is: 109,768.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,383.84 : 153,653.59 = 79,571.19 : x
  2. Step 2: Convert to fraction form
    111,383.84/153,653.59 = 79,571.19/x
  3. Step 3: Cross multiply
    111,383.84x = 153,653.59 × 79,571.19
  4. Step 4: Simplify right side
    111,383.84x = 12,226,399,679.74
  5. Step 5: Solve for x
    x = 12,226,399,679.74/111,383.84
  6. Step 6: Final answer
    x = 109,768.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.