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Finding the Fourth Proportional to 273,421.80, 410,132.70 and 223,558.20

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Solution

The fourth proportional to 273,421.80, 410,132.70 and 223,558.20 is: 335,337.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,421.80 : 410,132.70 = 223,558.20 : x
  2. Step 2: Convert to fraction form
    273,421.80/410,132.70 = 223,558.20/x
  3. Step 3: Cross multiply
    273,421.80x = 410,132.70 × 223,558.20
  4. Step 4: Simplify right side
    273,421.80x = 91,688,528,173.14
  5. Step 5: Solve for x
    x = 91,688,528,173.14/273,421.80
  6. Step 6: Final answer
    x = 335,337.30

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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.