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Finding the Fourth Proportional to 188,483.48, 260,100.60 and 103,600

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Solution

The fourth proportional to 188,483.48, 260,100.60 and 103,600 is: 142,964.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,483.48 : 260,100.60 = 103,600 : x
  2. Step 2: Convert to fraction form
    188,483.48/260,100.60 = 103,600/x
  3. Step 3: Cross multiply
    188,483.48x = 260,100.60 × 103,600
  4. Step 4: Simplify right side
    188,483.48x = 26,946,422,160
  5. Step 5: Solve for x
    x = 26,946,422,160/188,483.48
  6. Step 6: Final answer
    x = 142,964.37

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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.