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Finding the Fourth Proportional to 189,190.18, 283,969.95 and 156,245.86

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Solution

The fourth proportional to 189,190.18, 283,969.95 and 156,245.86 is: 234,521.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,190.18 : 283,969.95 = 156,245.86 : x
  2. Step 2: Convert to fraction form
    189,190.18/283,969.95 = 156,245.86/x
  3. Step 3: Cross multiply
    189,190.18x = 283,969.95 × 156,245.86
  4. Step 4: Simplify right side
    189,190.18x = 44,369,129,051.91
  5. Step 5: Solve for x
    x = 44,369,129,051.91/189,190.18
  6. Step 6: Final answer
    x = 234,521.31

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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.