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Finding the Fourth Proportional to 188,658.74, 260,325.39 and 127,537.88

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Solution

The fourth proportional to 188,658.74, 260,325.39 and 127,537.88 is: 175,986.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,658.74 : 260,325.39 = 127,537.88 : x
  2. Step 2: Convert to fraction form
    188,658.74/260,325.39 = 127,537.88/x
  3. Step 3: Cross multiply
    188,658.74x = 260,325.39 × 127,537.88
  4. Step 4: Simplify right side
    188,658.74x = 33,201,348,350.77
  5. Step 5: Solve for x
    x = 33,201,348,350.77/188,658.74
  6. Step 6: Final answer
    x = 175,986.27

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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.