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Finding the Fourth Proportional to 111,344.52, 153,655.20 and 61,043.52

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Solution

The fourth proportional to 111,344.52, 153,655.20 and 61,043.52 is: 84,239.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,344.52 : 153,655.20 = 61,043.52 : x
  2. Step 2: Convert to fraction form
    111,344.52/153,655.20 = 61,043.52/x
  3. Step 3: Cross multiply
    111,344.52x = 153,655.20 × 61,043.52
  4. Step 4: Simplify right side
    111,344.52x = 9,379,654,274.30
  5. Step 5: Solve for x
    x = 9,379,654,274.30/111,344.52
  6. Step 6: Final answer
    x = 84,239.93

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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.