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Finding the Fourth Proportional to 245,728.20, 368,786.70 and 96,040.20

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Solution

The fourth proportional to 245,728.20, 368,786.70 and 96,040.20 is: 144,136.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,728.20 : 368,786.70 = 96,040.20 : x
  2. Step 2: Convert to fraction form
    245,728.20/368,786.70 = 96,040.20/x
  3. Step 3: Cross multiply
    245,728.20x = 368,786.70 × 96,040.20
  4. Step 4: Simplify right side
    245,728.20x = 35,418,348,425.34
  5. Step 5: Solve for x
    x = 35,418,348,425.34/245,728.20
  6. Step 6: Final answer
    x = 144,136.28

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1.5x scale

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.