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Finding the Fourth Proportional to 188,541.64, 260,186.82 and 103,658.44

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Solution

The fourth proportional to 188,541.64, 260,186.82 and 103,658.44 is: 143,048.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,541.64 : 260,186.82 = 103,658.44 : x
  2. Step 2: Convert to fraction form
    188,541.64/260,186.82 = 103,658.44/x
  3. Step 3: Cross multiply
    188,541.64x = 260,186.82 × 103,658.44
  4. Step 4: Simplify right side
    188,541.64x = 26,970,559,869.76
  5. Step 5: Solve for x
    x = 26,970,559,869.76/188,541.64
  6. Step 6: Final answer
    x = 143,048.29

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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.