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Finding the Fourth Proportional to 189,853.62, 262,003.25 and 104,973.72

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Solution

The fourth proportional to 189,853.62, 262,003.25 and 104,973.72 is: 144,866.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,853.62 : 262,003.25 = 104,973.72 : x
  2. Step 2: Convert to fraction form
    189,853.62/262,003.25 = 104,973.72/x
  3. Step 3: Cross multiply
    189,853.62x = 262,003.25 × 104,973.72
  4. Step 4: Simplify right side
    189,853.62x = 27,503,455,804.59
  5. Step 5: Solve for x
    x = 27,503,455,804.59/189,853.62
  6. Step 6: Final answer
    x = 144,866.64

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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.