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Finding the Fourth Proportional to 92,111.60, 138,167.08 and 39,486.96

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Solution

The fourth proportional to 92,111.60, 138,167.08 and 39,486.96 is: 59,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,111.60 : 138,167.08 = 39,486.96 : x
  2. Step 2: Convert to fraction form
    92,111.60/138,167.08 = 39,486.96/x
  3. Step 3: Cross multiply
    92,111.60x = 138,167.08 × 39,486.96
  4. Step 4: Simplify right side
    92,111.60x = 5,455,797,961.28
  5. Step 5: Solve for x
    x = 5,455,797,961.28/92,111.60
  6. Step 6: Final answer
    x = 59,230.30

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1.5x scale

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.