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Finding the Fourth Proportional to 193,220.36, 266,593.65 and 111,528.62

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Solution

The fourth proportional to 193,220.36, 266,593.65 and 111,528.62 is: 153,880.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,220.36 : 266,593.65 = 111,528.62 : x
  2. Step 2: Convert to fraction form
    193,220.36/266,593.65 = 111,528.62/x
  3. Step 3: Cross multiply
    193,220.36x = 266,593.65 × 111,528.62
  4. Step 4: Simplify right side
    193,220.36x = 29,732,821,885.26
  5. Step 5: Solve for x
    x = 29,732,821,885.26/193,220.36
  6. Step 6: Final answer
    x = 153,880.38

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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.