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Finding the Fourth Proportional to 223,285.20, 334,922.40 and 134,471.40

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Solution

The fourth proportional to 223,285.20, 334,922.40 and 134,471.40 is: 201,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,285.20 : 334,922.40 = 134,471.40 : x
  2. Step 2: Convert to fraction form
    223,285.20/334,922.40 = 134,471.40/x
  3. Step 3: Cross multiply
    223,285.20x = 334,922.40 × 134,471.40
  4. Step 4: Simplify right side
    223,285.20x = 45,037,484,019.36
  5. Step 5: Solve for x
    x = 45,037,484,019.36/223,285.20
  6. Step 6: Final answer
    x = 201,703.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.