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Finding the Fourth Proportional to 192,803.52, 266,061.12 and 107,928.96

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Solution

The fourth proportional to 192,803.52, 266,061.12 and 107,928.96 is: 148,937.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,803.52 : 266,061.12 = 107,928.96 : x
  2. Step 2: Convert to fraction form
    192,803.52/266,061.12 = 107,928.96/x
  3. Step 3: Cross multiply
    192,803.52x = 266,061.12 × 107,928.96
  4. Step 4: Simplify right side
    192,803.52x = 28,715,699,978.04
  5. Step 5: Solve for x
    x = 28,715,699,978.04/192,803.52
  6. Step 6: Final answer
    x = 148,937.63

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Why These Related Problems?

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