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Finding the Fourth Proportional to 195,440.80, 293,103.60 and 77,072.80

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Solution

The fourth proportional to 195,440.80, 293,103.60 and 77,072.80 is: 115,586.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,440.80 : 293,103.60 = 77,072.80 : x
  2. Step 2: Convert to fraction form
    195,440.80/293,103.60 = 77,072.80/x
  3. Step 3: Cross multiply
    195,440.80x = 293,103.60 × 77,072.80
  4. Step 4: Simplify right side
    195,440.80x = 22,590,315,142.08
  5. Step 5: Solve for x
    x = 22,590,315,142.08/195,440.80
  6. Step 6: Final answer
    x = 115,586.49

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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.