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Finding the Fourth Proportional to 135,980.90, 203,915.21 and 59,048.90

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Solution

The fourth proportional to 135,980.90, 203,915.21 and 59,048.90 is: 88,548.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,980.90 : 203,915.21 = 59,048.90 : x
  2. Step 2: Convert to fraction form
    135,980.90/203,915.21 = 59,048.90/x
  3. Step 3: Cross multiply
    135,980.90x = 203,915.21 × 59,048.90
  4. Step 4: Simplify right side
    135,980.90x = 12,040,968,542.74
  5. Step 5: Solve for x
    x = 12,040,968,542.74/135,980.90
  6. Step 6: Final answer
    x = 88,548.97

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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.