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Finding the Fourth Proportional to 225,676.53, 311,465.51 and 139,663.23

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Solution

The fourth proportional to 225,676.53, 311,465.51 and 139,663.23 is: 192,755.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,676.53 : 311,465.51 = 139,663.23 : x
  2. Step 2: Convert to fraction form
    225,676.53/311,465.51 = 139,663.23/x
  3. Step 3: Cross multiply
    225,676.53x = 311,465.51 × 139,663.23
  4. Step 4: Simplify right side
    225,676.53x = 43,500,277,817.62
  5. Step 5: Solve for x
    x = 43,500,277,817.62/225,676.53
  6. Step 6: Final answer
    x = 192,755.00

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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.