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Finding the Fourth Proportional to 169,809.62, 254,494.64 and 69,856.70

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Solution

The fourth proportional to 169,809.62, 254,494.64 and 69,856.70 is: 104,694.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,809.62 : 254,494.64 = 69,856.70 : x
  2. Step 2: Convert to fraction form
    169,809.62/254,494.64 = 69,856.70/x
  3. Step 3: Cross multiply
    169,809.62x = 254,494.64 × 69,856.70
  4. Step 4: Simplify right side
    169,809.62x = 17,778,154,620.26
  5. Step 5: Solve for x
    x = 17,778,154,620.26/169,809.62
  6. Step 6: Final answer
    x = 104,694.63

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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.