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Finding the Fourth Proportional to 169,643.82, 254,553.21 and 69,877.74

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Solution

The fourth proportional to 169,643.82, 254,553.21 and 69,877.74 is: 104,852.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,643.82 : 254,553.21 = 69,877.74 : x
  2. Step 2: Convert to fraction form
    169,643.82/254,553.21 = 69,877.74/x
  3. Step 3: Cross multiply
    169,643.82x = 254,553.21 × 69,877.74
  4. Step 4: Simplify right side
    169,643.82x = 17,787,603,024.55
  5. Step 5: Solve for x
    x = 17,787,603,024.55/169,643.82
  6. Step 6: Final answer
    x = 104,852.64

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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.