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Finding the Fourth Proportional to 295,639.20, 443,458.80 and 108,784.80

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Solution

The fourth proportional to 295,639.20, 443,458.80 and 108,784.80 is: 163,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,639.20 : 443,458.80 = 108,784.80 : x
  2. Step 2: Convert to fraction form
    295,639.20/443,458.80 = 108,784.80/x
  3. Step 3: Cross multiply
    295,639.20x = 443,458.80 × 108,784.80
  4. Step 4: Simplify right side
    295,639.20x = 48,241,576,866.24
  5. Step 5: Solve for x
    x = 48,241,576,866.24/295,639.20
  6. Step 6: Final answer
    x = 163,177.20

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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.