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Finding the Fourth Proportional to 191,934.76, 264,863.82 and 105,893.68

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Solution

The fourth proportional to 191,934.76, 264,863.82 and 105,893.68 is: 146,129.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,934.76 : 264,863.82 = 105,893.68 : x
  2. Step 2: Convert to fraction form
    191,934.76/264,863.82 = 105,893.68/x
  3. Step 3: Cross multiply
    191,934.76x = 264,863.82 × 105,893.68
  4. Step 4: Simplify right side
    191,934.76x = 28,047,404,598.66
  5. Step 5: Solve for x
    x = 28,047,404,598.66/191,934.76
  6. Step 6: Final answer
    x = 146,129.89

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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.