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Finding the Fourth Proportional to 165,636.72, 228,647.34 and 125,361.72

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Solution

The fourth proportional to 165,636.72, 228,647.34 and 125,361.72 is: 173,051.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,636.72 : 228,647.34 = 125,361.72 : x
  2. Step 2: Convert to fraction form
    165,636.72/228,647.34 = 125,361.72/x
  3. Step 3: Cross multiply
    165,636.72x = 228,647.34 × 125,361.72
  4. Step 4: Simplify right side
    165,636.72x = 28,663,623,815.82
  5. Step 5: Solve for x
    x = 28,663,623,815.82/165,636.72
  6. Step 6: Final answer
    x = 173,051.14

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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.