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Finding the Fourth Proportional to 191,771.12, 264,644.52 and 106,886.48

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Solution

The fourth proportional to 191,771.12, 264,644.52 and 106,886.48 is: 147,503.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,771.12 : 264,644.52 = 106,886.48 : x
  2. Step 2: Convert to fraction form
    191,771.12/264,644.52 = 106,886.48/x
  3. Step 3: Cross multiply
    191,771.12x = 264,644.52 × 106,886.48
  4. Step 4: Simplify right side
    191,771.12x = 28,286,921,194.09
  5. Step 5: Solve for x
    x = 28,286,921,194.09/191,771.12
  6. Step 6: Final answer
    x = 147,503.55

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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.