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Finding the Fourth Proportional to 113,291.44, 156,297.94 and 64,867.49

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Solution

The fourth proportional to 113,291.44, 156,297.94 and 64,867.49 is: 89,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,291.44 : 156,297.94 = 64,867.49 : x
  2. Step 2: Convert to fraction form
    113,291.44/156,297.94 = 64,867.49/x
  3. Step 3: Cross multiply
    113,291.44x = 156,297.94 × 64,867.49
  4. Step 4: Simplify right side
    113,291.44x = 10,138,655,059.97
  5. Step 5: Solve for x
    x = 10,138,655,059.97/113,291.44
  6. Step 6: Final answer
    x = 89,491.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.