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Finding the Fourth Proportional to 165,704.02, 228,672 and 90,252.52

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Solution

The fourth proportional to 165,704.02, 228,672 and 90,252.52 is: 124,548.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,704.02 : 228,672 = 90,252.52 : x
  2. Step 2: Convert to fraction form
    165,704.02/228,672 = 90,252.52/x
  3. Step 3: Cross multiply
    165,704.02x = 228,672 × 90,252.52
  4. Step 4: Simplify right side
    165,704.02x = 20,638,224,253.44
  5. Step 5: Solve for x
    x = 20,638,224,253.44/165,704.02
  6. Step 6: Final answer
    x = 124,548.72

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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.