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Finding the Fourth Proportional to 97,634.40, 146,451.60 and 87,266.40

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Solution

The fourth proportional to 97,634.40, 146,451.60 and 87,266.40 is: 130,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,634.40 : 146,451.60 = 87,266.40 : x
  2. Step 2: Convert to fraction form
    97,634.40/146,451.60 = 87,266.40/x
  3. Step 3: Cross multiply
    97,634.40x = 146,451.60 × 87,266.40
  4. Step 4: Simplify right side
    97,634.40x = 12,780,303,906.24
  5. Step 5: Solve for x
    x = 12,780,303,906.24/97,634.40
  6. Step 6: Final answer
    x = 130,899.60

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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.