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Finding the Fourth Proportional to 119,163.72, 178,473.36 and 56,877.96

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Solution

The fourth proportional to 119,163.72, 178,473.36 and 56,877.96 is: 85,187.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,163.72 : 178,473.36 = 56,877.96 : x
  2. Step 2: Convert to fraction form
    119,163.72/178,473.36 = 56,877.96/x
  3. Step 3: Cross multiply
    119,163.72x = 178,473.36 × 56,877.96
  4. Step 4: Simplify right side
    119,163.72x = 10,151,200,631.15
  5. Step 5: Solve for x
    x = 10,151,200,631.15/119,163.72
  6. Step 6: Final answer
    x = 85,187.01

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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.