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Finding the Fourth Proportional to 169,660.40, 254,490.60 and 146,040.80

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Solution

The fourth proportional to 169,660.40, 254,490.60 and 146,040.80 is: 219,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,660.40 : 254,490.60 = 146,040.80 : x
  2. Step 2: Convert to fraction form
    169,660.40/254,490.60 = 146,040.80/x
  3. Step 3: Cross multiply
    169,660.40x = 254,490.60 × 146,040.80
  4. Step 4: Simplify right side
    169,660.40x = 37,166,010,816.48
  5. Step 5: Solve for x
    x = 37,166,010,816.48/169,660.40
  6. Step 6: Final answer
    x = 219,061.20

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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.