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Finding the Fourth Proportional to 219,980.73, 303,573.41 and 119,378.73

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Solution

The fourth proportional to 219,980.73, 303,573.41 and 119,378.73 is: 164,742.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,980.73 : 303,573.41 = 119,378.73 : x
  2. Step 2: Convert to fraction form
    219,980.73/303,573.41 = 119,378.73/x
  3. Step 3: Cross multiply
    219,980.73x = 303,573.41 × 119,378.73
  4. Step 4: Simplify right side
    219,980.73x = 36,240,209,428.73
  5. Step 5: Solve for x
    x = 36,240,209,428.73/219,980.73
  6. Step 6: Final answer
    x = 164,742.65

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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.