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Finding the Fourth Proportional to 150,886.96, 208,200.88 and 87,212.48

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Solution

The fourth proportional to 150,886.96, 208,200.88 and 87,212.48 is: 120,339.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,886.96 : 208,200.88 = 87,212.48 : x
  2. Step 2: Convert to fraction form
    150,886.96/208,200.88 = 87,212.48/x
  3. Step 3: Cross multiply
    150,886.96x = 208,200.88 × 87,212.48
  4. Step 4: Simplify right side
    150,886.96x = 18,157,715,082.98
  5. Step 5: Solve for x
    x = 18,157,715,082.98/150,886.96
  6. Step 6: Final answer
    x = 120,339.86

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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.