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Finding the Fourth Proportional to 192,069.72, 265,054.68 and 111,504.72

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Solution

The fourth proportional to 192,069.72, 265,054.68 and 111,504.72 is: 153,875.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,069.72 : 265,054.68 = 111,504.72 : x
  2. Step 2: Convert to fraction form
    192,069.72/265,054.68 = 111,504.72/x
  3. Step 3: Cross multiply
    192,069.72x = 265,054.68 × 111,504.72
  4. Step 4: Simplify right side
    192,069.72x = 29,554,847,878.09
  5. Step 5: Solve for x
    x = 29,554,847,878.09/192,069.72
  6. Step 6: Final answer
    x = 153,875.62

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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.