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Finding the Fourth Proportional to 113,887.58, 170,682.72 and 82,403.68

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Solution

The fourth proportional to 113,887.58, 170,682.72 and 82,403.68 is: 123,497.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,887.58 : 170,682.72 = 82,403.68 : x
  2. Step 2: Convert to fraction form
    113,887.58/170,682.72 = 82,403.68/x
  3. Step 3: Cross multiply
    113,887.58x = 170,682.72 × 82,403.68
  4. Step 4: Simplify right side
    113,887.58x = 14,064,884,240.41
  5. Step 5: Solve for x
    x = 14,064,884,240.41/113,887.58
  6. Step 6: Final answer
    x = 123,497.96

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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.