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Finding the Fourth Proportional to 188,159.56, 259,663.26 and 103,284.52

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Solution

The fourth proportional to 188,159.56, 259,663.26 and 103,284.52 is: 142,534.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,159.56 : 259,663.26 = 103,284.52 : x
  2. Step 2: Convert to fraction form
    188,159.56/259,663.26 = 103,284.52/x
  3. Step 3: Cross multiply
    188,159.56x = 259,663.26 × 103,284.52
  4. Step 4: Simplify right side
    188,159.56x = 26,819,195,170.74
  5. Step 5: Solve for x
    x = 26,819,195,170.74/188,159.56
  6. Step 6: Final answer
    x = 142,534.32

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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.