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Finding the Fourth Proportional to 92,655.10, 138,985.35 and 33,480.28

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Solution

The fourth proportional to 92,655.10, 138,985.35 and 33,480.28 is: 50,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,655.10 : 138,985.35 = 33,480.28 : x
  2. Step 2: Convert to fraction form
    92,655.10/138,985.35 = 33,480.28/x
  3. Step 3: Cross multiply
    92,655.10x = 138,985.35 × 33,480.28
  4. Step 4: Simplify right side
    92,655.10x = 4,653,268,433.90
  5. Step 5: Solve for x
    x = 4,653,268,433.90/92,655.10
  6. Step 6: Final answer
    x = 50,221.40

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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.