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Finding the Fourth Proportional to 189,611.04, 284,416.56 and 56,487.86

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Solution

The fourth proportional to 189,611.04, 284,416.56 and 56,487.86 is: 84,731.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,611.04 : 284,416.56 = 56,487.86 : x
  2. Step 2: Convert to fraction form
    189,611.04/284,416.56 = 56,487.86/x
  3. Step 3: Cross multiply
    189,611.04x = 284,416.56 × 56,487.86
  4. Step 4: Simplify right side
    189,611.04x = 16,066,082,822.96
  5. Step 5: Solve for x
    x = 16,066,082,822.96/189,611.04
  6. Step 6: Final answer
    x = 84,731.79

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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.