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Finding the Fourth Proportional to 225,358.23, 311,205.06 and 144,925.41

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Solution

The fourth proportional to 225,358.23, 311,205.06 and 144,925.41 is: 200,132.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,358.23 : 311,205.06 = 144,925.41 : x
  2. Step 2: Convert to fraction form
    225,358.23/311,205.06 = 144,925.41/x
  3. Step 3: Cross multiply
    225,358.23x = 311,205.06 × 144,925.41
  4. Step 4: Simplify right side
    225,358.23x = 45,101,520,914.57
  5. Step 5: Solve for x
    x = 45,101,520,914.57/225,358.23
  6. Step 6: Final answer
    x = 200,132.57

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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.