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Finding the Fourth Proportional to 225,610.84, 311,336.22 and 123,635.08

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Solution

The fourth proportional to 225,610.84, 311,336.22 and 123,635.08 is: 170,612.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,610.84 : 311,336.22 = 123,635.08 : x
  2. Step 2: Convert to fraction form
    225,610.84/311,336.22 = 123,635.08/x
  3. Step 3: Cross multiply
    225,610.84x = 311,336.22 × 123,635.08
  4. Step 4: Simplify right side
    225,610.84x = 38,492,078,466.60
  5. Step 5: Solve for x
    x = 38,492,078,466.60/225,610.84
  6. Step 6: Final answer
    x = 170,612.72

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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.