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Finding the Fourth Proportional to 245,090.40, 367,635.60 and 161,109.60

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Solution

The fourth proportional to 245,090.40, 367,635.60 and 161,109.60 is: 241,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,090.40 : 367,635.60 = 161,109.60 : x
  2. Step 2: Convert to fraction form
    245,090.40/367,635.60 = 161,109.60/x
  3. Step 3: Cross multiply
    245,090.40x = 367,635.60 × 161,109.60
  4. Step 4: Simplify right side
    245,090.40x = 59,229,624,461.76
  5. Step 5: Solve for x
    x = 59,229,624,461.76/245,090.40
  6. Step 6: Final answer
    x = 241,664.40

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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.