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Finding the Fourth Proportional to 252,485.76, 348,556.61 and 157,023.21

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Solution

The fourth proportional to 252,485.76, 348,556.61 and 157,023.21 is: 216,770.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,485.76 : 348,556.61 = 157,023.21 : x
  2. Step 2: Convert to fraction form
    252,485.76/348,556.61 = 157,023.21/x
  3. Step 3: Cross multiply
    252,485.76x = 348,556.61 × 157,023.21
  4. Step 4: Simplify right side
    252,485.76x = 54,731,477,768.92
  5. Step 5: Solve for x
    x = 54,731,477,768.92/252,485.76
  6. Step 6: Final answer
    x = 216,770.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.