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Finding the Fourth Proportional to 189,355.86, 284,074.29 and 56,245.32

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Solution

The fourth proportional to 189,355.86, 284,074.29 and 56,245.32 is: 84,380.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,355.86 : 284,074.29 = 56,245.32 : x
  2. Step 2: Convert to fraction form
    189,355.86/284,074.29 = 56,245.32/x
  3. Step 3: Cross multiply
    189,355.86x = 284,074.29 × 56,245.32
  4. Step 4: Simplify right side
    189,355.86x = 15,977,849,344.82
  5. Step 5: Solve for x
    x = 15,977,849,344.82/189,355.86
  6. Step 6: Final answer
    x = 84,380.01

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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.