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Finding the Fourth Proportional to 169,672.60, 254,612.90 and 69,880.60

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Solution

The fourth proportional to 169,672.60, 254,612.90 and 69,880.60 is: 104,863.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,672.60 : 254,612.90 = 69,880.60 : x
  2. Step 2: Convert to fraction form
    169,672.60/254,612.90 = 69,880.60/x
  3. Step 3: Cross multiply
    169,672.60x = 254,612.90 × 69,880.60
  4. Step 4: Simplify right side
    169,672.60x = 17,792,502,219.74
  5. Step 5: Solve for x
    x = 17,792,502,219.74/169,672.60
  6. Step 6: Final answer
    x = 104,863.73

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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.