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Finding the Fourth Proportional to 188,773.06, 260,558 and 111,316.36

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Solution

The fourth proportional to 188,773.06, 260,558 and 111,316.36 is: 153,646.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,773.06 : 260,558 = 111,316.36 : x
  2. Step 2: Convert to fraction form
    188,773.06/260,558 = 111,316.36/x
  3. Step 3: Cross multiply
    188,773.06x = 260,558 × 111,316.36
  4. Step 4: Simplify right side
    188,773.06x = 29,004,368,128.88
  5. Step 5: Solve for x
    x = 29,004,368,128.88/188,773.06
  6. Step 6: Final answer
    x = 153,646.76

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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.