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Finding the Fourth Proportional to 191,673.96, 264,511.87 and 105,636.04

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Solution

The fourth proportional to 191,673.96, 264,511.87 and 105,636.04 is: 145,778.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,673.96 : 264,511.87 = 105,636.04 : x
  2. Step 2: Convert to fraction form
    191,673.96/264,511.87 = 105,636.04/x
  3. Step 3: Cross multiply
    191,673.96x = 264,511.87 × 105,636.04
  4. Step 4: Simplify right side
    191,673.96x = 27,941,987,141.07
  5. Step 5: Solve for x
    x = 27,941,987,141.07/191,673.96
  6. Step 6: Final answer
    x = 145,778.74

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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.