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Finding the Fourth Proportional to 169,933.60, 254,900.40 and 45,274.60

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Solution

The fourth proportional to 169,933.60, 254,900.40 and 45,274.60 is: 67,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,933.60 : 254,900.40 = 45,274.60 : x
  2. Step 2: Convert to fraction form
    169,933.60/254,900.40 = 45,274.60/x
  3. Step 3: Cross multiply
    169,933.60x = 254,900.40 × 45,274.60
  4. Step 4: Simplify right side
    169,933.60x = 11,540,513,649.84
  5. Step 5: Solve for x
    x = 11,540,513,649.84/169,933.60
  6. Step 6: Final answer
    x = 67,911.90

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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.