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Finding the Fourth Proportional to 191,876.61, 264,708.05 and 140,800.61

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Solution

The fourth proportional to 191,876.61, 264,708.05 and 140,800.61 is: 194,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,876.61 : 264,708.05 = 140,800.61 : x
  2. Step 2: Convert to fraction form
    191,876.61/264,708.05 = 140,800.61/x
  3. Step 3: Cross multiply
    191,876.61x = 264,708.05 × 140,800.61
  4. Step 4: Simplify right side
    191,876.61x = 37,271,052,884.37
  5. Step 5: Solve for x
    x = 37,271,052,884.37/191,876.61
  6. Step 6: Final answer
    x = 194,244.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.