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Finding the Fourth Proportional to 100,771.98, 150,991.88 and 58,533.50

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Solution

The fourth proportional to 100,771.98, 150,991.88 and 58,533.50 is: 87,703.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,771.98 : 150,991.88 = 58,533.50 : x
  2. Step 2: Convert to fraction form
    100,771.98/150,991.88 = 58,533.50/x
  3. Step 3: Cross multiply
    100,771.98x = 150,991.88 × 58,533.50
  4. Step 4: Simplify right side
    100,771.98x = 8,838,083,207.98
  5. Step 5: Solve for x
    x = 8,838,083,207.98/100,771.98
  6. Step 6: Final answer
    x = 87,703.78

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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.