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Finding the Fourth Proportional to 191,530.92, 264,310.08 and 106,647.96

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Solution

The fourth proportional to 191,530.92, 264,310.08 and 106,647.96 is: 147,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,530.92 : 264,310.08 = 106,647.96 : x
  2. Step 2: Convert to fraction form
    191,530.92/264,310.08 = 106,647.96/x
  3. Step 3: Cross multiply
    191,530.92x = 264,310.08 × 106,647.96
  4. Step 4: Simplify right side
    191,530.92x = 28,188,130,839.44
  5. Step 5: Solve for x
    x = 28,188,130,839.44/191,530.92
  6. Step 6: Final answer
    x = 147,172.74

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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.