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Finding the Fourth Proportional to 295,702.60, 443,043.60 and 137,606.80

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Solution

The fourth proportional to 295,702.60, 443,043.60 and 137,606.80 is: 206,172.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,702.60 : 443,043.60 = 137,606.80 : x
  2. Step 2: Convert to fraction form
    295,702.60/443,043.60 = 137,606.80/x
  3. Step 3: Cross multiply
    295,702.60x = 443,043.60 × 137,606.80
  4. Step 4: Simplify right side
    295,702.60x = 60,965,812,056.48
  5. Step 5: Solve for x
    x = 60,965,812,056.48/295,702.60
  6. Step 6: Final answer
    x = 206,172.73

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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.