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Finding the Fourth Proportional to 189,907.61, 284,773.59 and 69,934.27

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Solution

The fourth proportional to 189,907.61, 284,773.59 and 69,934.27 is: 104,869.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,907.61 : 284,773.59 = 69,934.27 : x
  2. Step 2: Convert to fraction form
    189,907.61/284,773.59 = 69,934.27/x
  3. Step 3: Cross multiply
    189,907.61x = 284,773.59 × 69,934.27
  4. Step 4: Simplify right side
    189,907.61x = 19,915,433,131.93
  5. Step 5: Solve for x
    x = 19,915,433,131.93/189,907.61
  6. Step 6: Final answer
    x = 104,869.06

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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.