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Finding the Fourth Proportional to 92,496.60, 138,744.90 and 45,840.60

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Solution

The fourth proportional to 92,496.60, 138,744.90 and 45,840.60 is: 68,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,496.60 : 138,744.90 = 45,840.60 : x
  2. Step 2: Convert to fraction form
    92,496.60/138,744.90 = 45,840.60/x
  3. Step 3: Cross multiply
    92,496.60x = 138,744.90 × 45,840.60
  4. Step 4: Simplify right side
    92,496.60x = 6,360,149,462.94
  5. Step 5: Solve for x
    x = 6,360,149,462.94/92,496.60
  6. Step 6: Final answer
    x = 68,760.90

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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.