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Finding the Fourth Proportional to 165,745.72, 247,415.99 and 153,410.68

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Solution

The fourth proportional to 165,745.72, 247,415.99 and 153,410.68 is: 229,002.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,745.72 : 247,415.99 = 153,410.68 : x
  2. Step 2: Convert to fraction form
    165,745.72/247,415.99 = 153,410.68/x
  3. Step 3: Cross multiply
    165,745.72x = 247,415.99 × 153,410.68
  4. Step 4: Simplify right side
    165,745.72x = 37,956,255,268.77
  5. Step 5: Solve for x
    x = 37,956,255,268.77/165,745.72
  6. Step 6: Final answer
    x = 229,002.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.