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Finding the Fourth Proportional to 92,894.22, 128,201.96 and 52,615.16

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Solution

The fourth proportional to 92,894.22, 128,201.96 and 52,615.16 is: 72,613.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,894.22 : 128,201.96 = 52,615.16 : x
  2. Step 2: Convert to fraction form
    92,894.22/128,201.96 = 52,615.16/x
  3. Step 3: Cross multiply
    92,894.22x = 128,201.96 × 52,615.16
  4. Step 4: Simplify right side
    92,894.22x = 6,745,365,733.63
  5. Step 5: Solve for x
    x = 6,745,365,733.63/92,894.22
  6. Step 6: Final answer
    x = 72,613.41

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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.