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Finding the Fourth Proportional to 169,930.40, 254,895.60 and 146,310.80

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Solution

The fourth proportional to 169,930.40, 254,895.60 and 146,310.80 is: 219,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,930.40 : 254,895.60 = 146,310.80 : x
  2. Step 2: Convert to fraction form
    169,930.40/254,895.60 = 146,310.80/x
  3. Step 3: Cross multiply
    169,930.40x = 254,895.60 × 146,310.80
  4. Step 4: Simplify right side
    169,930.40x = 37,293,979,152.48
  5. Step 5: Solve for x
    x = 37,293,979,152.48/169,930.40
  6. Step 6: Final answer
    x = 219,466.20

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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.