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Finding the Fourth Proportional to 169,783.40, 254,675.10 and 132,458.60

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Solution

The fourth proportional to 169,783.40, 254,675.10 and 132,458.60 is: 198,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,783.40 : 254,675.10 = 132,458.60 : x
  2. Step 2: Convert to fraction form
    169,783.40/254,675.10 = 132,458.60/x
  3. Step 3: Cross multiply
    169,783.40x = 254,675.10 × 132,458.60
  4. Step 4: Simplify right side
    169,783.40x = 33,733,907,200.86
  5. Step 5: Solve for x
    x = 33,733,907,200.86/169,783.40
  6. Step 6: Final answer
    x = 198,687.90

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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.