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Finding the Fourth Proportional to 188,498.50, 260,128.47 and 107,927.26

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Solution

The fourth proportional to 188,498.50, 260,128.47 and 107,927.26 is: 148,939.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,498.50 : 260,128.47 = 107,927.26 : x
  2. Step 2: Convert to fraction form
    188,498.50/260,128.47 = 107,927.26/x
  3. Step 3: Cross multiply
    188,498.50x = 260,128.47 × 107,927.26
  4. Step 4: Simplify right side
    188,498.50x = 28,074,953,015.09
  5. Step 5: Solve for x
    x = 28,074,953,015.09/188,498.50
  6. Step 6: Final answer
    x = 148,939.93

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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.