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Finding the Fourth Proportional to 252,842.54, 379,041.14 and 103,208.60

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Solution

The fourth proportional to 252,842.54, 379,041.14 and 103,208.60 is: 154,722.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,842.54 : 379,041.14 = 103,208.60 : x
  2. Step 2: Convert to fraction form
    252,842.54/379,041.14 = 103,208.60/x
  3. Step 3: Cross multiply
    252,842.54x = 379,041.14 × 103,208.60
  4. Step 4: Simplify right side
    252,842.54x = 39,120,302,990.56
  5. Step 5: Solve for x
    x = 39,120,302,990.56/252,842.54
  6. Step 6: Final answer
    x = 154,722.00

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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.