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Finding the Fourth Proportional to 189,811.55, 284,776.56 and 56,697.06

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Solution

The fourth proportional to 189,811.55, 284,776.56 and 56,697.06 is: 85,063.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,811.55 : 284,776.56 = 56,697.06 : x
  2. Step 2: Convert to fraction form
    189,811.55/284,776.56 = 56,697.06/x
  3. Step 3: Cross multiply
    189,811.55x = 284,776.56 × 56,697.06
  4. Step 4: Simplify right side
    189,811.55x = 16,145,994,776.83
  5. Step 5: Solve for x
    x = 16,145,994,776.83/189,811.55
  6. Step 6: Final answer
    x = 85,063.29

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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.