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Finding the Fourth Proportional to 111,788.63, 154,266.78 and 60,800.26

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Solution

The fourth proportional to 111,788.63, 154,266.78 and 60,800.26 is: 83,903.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,788.63 : 154,266.78 = 60,800.26 : x
  2. Step 2: Convert to fraction form
    111,788.63/154,266.78 = 60,800.26/x
  3. Step 3: Cross multiply
    111,788.63x = 154,266.78 × 60,800.26
  4. Step 4: Simplify right side
    111,788.63x = 9,379,460,333.36
  5. Step 5: Solve for x
    x = 9,379,460,333.36/111,788.63
  6. Step 6: Final answer
    x = 83,903.53

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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.