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Finding the Fourth Proportional to 89,059.82, 122,909.58 and 50,810.58

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Solution

The fourth proportional to 89,059.82, 122,909.58 and 50,810.58 is: 70,122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,059.82 : 122,909.58 = 50,810.58 : x
  2. Step 2: Convert to fraction form
    89,059.82/122,909.58 = 50,810.58/x
  3. Step 3: Cross multiply
    89,059.82x = 122,909.58 × 50,810.58
  4. Step 4: Simplify right side
    89,059.82x = 6,245,107,047.36
  5. Step 5: Solve for x
    x = 6,245,107,047.36/89,059.82
  6. Step 6: Final answer
    x = 70,122.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.