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Finding the Fourth Proportional to 97,605.60, 146,408.40 and 80,984.40

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Solution

The fourth proportional to 97,605.60, 146,408.40 and 80,984.40 is: 121,476.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,605.60 : 146,408.40 = 80,984.40 : x
  2. Step 2: Convert to fraction form
    97,605.60/146,408.40 = 80,984.40/x
  3. Step 3: Cross multiply
    97,605.60x = 146,408.40 × 80,984.40
  4. Step 4: Simplify right side
    97,605.60x = 11,856,796,428.96
  5. Step 5: Solve for x
    x = 11,856,796,428.96/97,605.60
  6. Step 6: Final answer
    x = 121,476.60

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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.