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Finding the Fourth Proportional to 92,127.96, 138,171.30 and 35,969.40

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Solution

The fourth proportional to 92,127.96, 138,171.30 and 35,969.40 is: 53,946.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,127.96 : 138,171.30 = 35,969.40 : x
  2. Step 2: Convert to fraction form
    92,127.96/138,171.30 = 35,969.40/x
  3. Step 3: Cross multiply
    92,127.96x = 138,171.30 × 35,969.40
  4. Step 4: Simplify right side
    92,127.96x = 4,969,938,758.22
  5. Step 5: Solve for x
    x = 4,969,938,758.22/92,127.96
  6. Step 6: Final answer
    x = 53,946.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.