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Finding the Fourth Proportional to 253,696.40, 380,544.60 and 169,715.60

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Solution

The fourth proportional to 253,696.40, 380,544.60 and 169,715.60 is: 254,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,696.40 : 380,544.60 = 169,715.60 : x
  2. Step 2: Convert to fraction form
    253,696.40/380,544.60 = 169,715.60/x
  3. Step 3: Cross multiply
    253,696.40x = 380,544.60 × 169,715.60
  4. Step 4: Simplify right side
    253,696.40x = 64,584,355,115.76
  5. Step 5: Solve for x
    x = 64,584,355,115.76/253,696.40
  6. Step 6: Final answer
    x = 254,573.40

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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.