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Finding the Fourth Proportional to 335,564.80, 503,930.40 and 178,100.80

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Solution

The fourth proportional to 335,564.80, 503,930.40 and 178,100.80 is: 267,460.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,564.80 : 503,930.40 = 178,100.80 : x
  2. Step 2: Convert to fraction form
    335,564.80/503,930.40 = 178,100.80/x
  3. Step 3: Cross multiply
    335,564.80x = 503,930.40 × 178,100.80
  4. Step 4: Simplify right side
    335,564.80x = 89,750,407,384.32
  5. Step 5: Solve for x
    x = 89,750,407,384.32/335,564.80
  6. Step 6: Final answer
    x = 267,460.73

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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.