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Finding the Fourth Proportional to 111,884.52, 154,400.67 and 61,583.52

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Solution

The fourth proportional to 111,884.52, 154,400.67 and 61,583.52 is: 84,985.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,884.52 : 154,400.67 = 61,583.52 : x
  2. Step 2: Convert to fraction form
    111,884.52/154,400.67 = 61,583.52/x
  3. Step 3: Cross multiply
    111,884.52x = 154,400.67 × 61,583.52
  4. Step 4: Simplify right side
    111,884.52x = 9,508,536,748.96
  5. Step 5: Solve for x
    x = 9,508,536,748.96/111,884.52
  6. Step 6: Final answer
    x = 84,985.28

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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.