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Finding the Fourth Proportional to 225,588.19, 311,311.70 and 134,947.98

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Solution

The fourth proportional to 225,588.19, 311,311.70 and 134,947.98 is: 186,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,588.19 : 311,311.70 = 134,947.98 : x
  2. Step 2: Convert to fraction form
    225,588.19/311,311.70 = 134,947.98/x
  3. Step 3: Cross multiply
    225,588.19x = 311,311.70 × 134,947.98
  4. Step 4: Simplify right side
    225,588.19x = 42,010,885,065.37
  5. Step 5: Solve for x
    x = 42,010,885,065.37/225,588.19
  6. Step 6: Final answer
    x = 186,228.21

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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.