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Finding the Fourth Proportional to 171,696.60, 257,544.90 and 45,336.60

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Solution

The fourth proportional to 171,696.60, 257,544.90 and 45,336.60 is: 68,004.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,696.60 : 257,544.90 = 45,336.60 : x
  2. Step 2: Convert to fraction form
    171,696.60/257,544.90 = 45,336.60/x
  3. Step 3: Cross multiply
    171,696.60x = 257,544.90 × 45,336.60
  4. Step 4: Simplify right side
    171,696.60x = 11,676,210,113.34
  5. Step 5: Solve for x
    x = 11,676,210,113.34/171,696.60
  6. Step 6: Final answer
    x = 68,004.90

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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.