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Finding the Fourth Proportional to 169,860.21, 254,820.96 and 69,965.88

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Solution

The fourth proportional to 169,860.21, 254,820.96 and 69,965.88 is: 104,961.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,860.21 : 254,820.96 = 69,965.88 : x
  2. Step 2: Convert to fraction form
    169,860.21/254,820.96 = 69,965.88/x
  3. Step 3: Cross multiply
    169,860.21x = 254,820.96 × 69,965.88
  4. Step 4: Simplify right side
    169,860.21x = 17,828,772,708.84
  5. Step 5: Solve for x
    x = 17,828,772,708.84/169,860.21
  6. Step 6: Final answer
    x = 104,961.44

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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.