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Finding the Fourth Proportional to 169,641.40, 254,419.44 and 69,829.44

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Solution

The fourth proportional to 169,641.40, 254,419.44 and 69,829.44 is: 104,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,641.40 : 254,419.44 = 69,829.44 : x
  2. Step 2: Convert to fraction form
    169,641.40/254,419.44 = 69,829.44/x
  3. Step 3: Cross multiply
    169,641.40x = 254,419.44 × 69,829.44
  4. Step 4: Simplify right side
    169,641.40x = 17,765,967,020.31
  5. Step 5: Solve for x
    x = 17,765,967,020.31/169,641.40
  6. Step 6: Final answer
    x = 104,726.60

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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.