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Finding the Fourth Proportional to 165,328, 228,152.10 and 89,875.96

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Solution

The fourth proportional to 165,328, 228,152.10 and 89,875.96 is: 124,028.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,328 : 228,152.10 = 89,875.96 : x
  2. Step 2: Convert to fraction form
    165,328/228,152.10 = 89,875.96/x
  3. Step 3: Cross multiply
    165,328x = 228,152.10 × 89,875.96
  4. Step 4: Simplify right side
    165,328x = 20,505,389,013.52
  5. Step 5: Solve for x
    x = 20,505,389,013.52/165,328
  6. Step 6: Final answer
    x = 124,028.53

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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.