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Finding the Fourth Proportional to 188,548.10, 260,192.86 and 103,663.34

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Solution

The fourth proportional to 188,548.10, 260,192.86 and 103,663.34 is: 143,053.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,548.10 : 260,192.86 = 103,663.34 : x
  2. Step 2: Convert to fraction form
    188,548.10/260,192.86 = 103,663.34/x
  3. Step 3: Cross multiply
    188,548.10x = 260,192.86 × 103,663.34
  4. Step 4: Simplify right side
    188,548.10x = 26,972,460,911.75
  5. Step 5: Solve for x
    x = 26,972,460,911.75/188,548.10
  6. Step 6: Final answer
    x = 143,053.48

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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.