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Finding the Fourth Proportional to 191,673.12, 264,508.32 and 106,789.44

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Solution

The fourth proportional to 191,673.12, 264,508.32 and 106,789.44 is: 147,369.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,673.12 : 264,508.32 = 106,789.44 : x
  2. Step 2: Convert to fraction form
    191,673.12/264,508.32 = 106,789.44/x
  3. Step 3: Cross multiply
    191,673.12x = 264,508.32 × 106,789.44
  4. Step 4: Simplify right side
    191,673.12x = 28,246,695,368.14
  5. Step 5: Solve for x
    x = 28,246,695,368.14/191,673.12
  6. Step 6: Final answer
    x = 147,369.10

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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.