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Finding the Fourth Proportional to 223,313.80, 334,581.90 and 144,387.40

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Solution

The fourth proportional to 223,313.80, 334,581.90 and 144,387.40 is: 216,329.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,313.80 : 334,581.90 = 144,387.40 : x
  2. Step 2: Convert to fraction form
    223,313.80/334,581.90 = 144,387.40/x
  3. Step 3: Cross multiply
    223,313.80x = 334,581.90 × 144,387.40
  4. Step 4: Simplify right side
    223,313.80x = 48,309,410,628.06
  5. Step 5: Solve for x
    x = 48,309,410,628.06/223,313.80
  6. Step 6: Final answer
    x = 216,329.71

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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.