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Finding the Fourth Proportional to 303,890.80, 456,246.60 and 177,660.40

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Solution

The fourth proportional to 303,890.80, 456,246.60 and 177,660.40 is: 266,730.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,890.80 : 456,246.60 = 177,660.40 : x
  2. Step 2: Convert to fraction form
    303,890.80/456,246.60 = 177,660.40/x
  3. Step 3: Cross multiply
    303,890.80x = 456,246.60 × 177,660.40
  4. Step 4: Simplify right side
    303,890.80x = 81,056,953,454.64
  5. Step 5: Solve for x
    x = 81,056,953,454.64/303,890.80
  6. Step 6: Final answer
    x = 266,730.53

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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.