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Finding the Fourth Proportional to 219,991.33, 303,592.34 and 143,559.32

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Solution

The fourth proportional to 219,991.33, 303,592.34 and 143,559.32 is: 198,114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,991.33 : 303,592.34 = 143,559.32 : x
  2. Step 2: Convert to fraction form
    219,991.33/303,592.34 = 143,559.32/x
  3. Step 3: Cross multiply
    219,991.33x = 303,592.34 × 143,559.32
  4. Step 4: Simplify right side
    219,991.33x = 43,583,509,887.61
  5. Step 5: Solve for x
    x = 43,583,509,887.61/219,991.33
  6. Step 6: Final answer
    x = 198,114.67

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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.