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Finding the Fourth Proportional to 165,296.32, 228,108 and 93,689.88

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Solution

The fourth proportional to 165,296.32, 228,108 and 93,689.88 is: 129,291.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,296.32 : 228,108 = 93,689.88 : x
  2. Step 2: Convert to fraction form
    165,296.32/228,108 = 93,689.88/x
  3. Step 3: Cross multiply
    165,296.32x = 228,108 × 93,689.88
  4. Step 4: Simplify right side
    165,296.32x = 21,371,411,147.04
  5. Step 5: Solve for x
    x = 21,371,411,147.04/165,296.32
  6. Step 6: Final answer
    x = 129,291.51

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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.