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Finding the Fourth Proportional to 92,690.40, 139,035.60 and 26,132.70

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Solution

The fourth proportional to 92,690.40, 139,035.60 and 26,132.70 is: 39,199.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,690.40 : 139,035.60 = 26,132.70 : x
  2. Step 2: Convert to fraction form
    92,690.40/139,035.60 = 26,132.70/x
  3. Step 3: Cross multiply
    92,690.40x = 139,035.60 × 26,132.70
  4. Step 4: Simplify right side
    92,690.40x = 3,633,375,624.12
  5. Step 5: Solve for x
    x = 3,633,375,624.12/92,690.40
  6. Step 6: Final answer
    x = 39,199.05

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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.