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Finding the Fourth Proportional to 98,408.70, 147,613.05 and 27,331.20

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Solution

The fourth proportional to 98,408.70, 147,613.05 and 27,331.20 is: 40,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,408.70 : 147,613.05 = 27,331.20 : x
  2. Step 2: Convert to fraction form
    98,408.70/147,613.05 = 27,331.20/x
  3. Step 3: Cross multiply
    98,408.70x = 147,613.05 × 27,331.20
  4. Step 4: Simplify right side
    98,408.70x = 4,034,441,792.16
  5. Step 5: Solve for x
    x = 4,034,441,792.16/98,408.70
  6. Step 6: Final answer
    x = 40,996.80

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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.