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Finding the Fourth Proportional to 188,651.22, 260,712.06 and 154,606.02

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Solution

The fourth proportional to 188,651.22, 260,712.06 and 154,606.02 is: 213,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,651.22 : 260,712.06 = 154,606.02 : x
  2. Step 2: Convert to fraction form
    188,651.22/260,712.06 = 154,606.02/x
  3. Step 3: Cross multiply
    188,651.22x = 260,712.06 × 154,606.02
  4. Step 4: Simplify right side
    188,651.22x = 40,307,653,962.60
  5. Step 5: Solve for x
    x = 40,307,653,962.60/188,651.22
  6. Step 6: Final answer
    x = 213,662.30

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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.