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Finding the Fourth Proportional to 191,918.34, 264,846.65 and 107,035.34

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Solution

The fourth proportional to 191,918.34, 264,846.65 and 107,035.34 is: 147,708.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,918.34 : 264,846.65 = 107,035.34 : x
  2. Step 2: Convert to fraction form
    191,918.34/264,846.65 = 107,035.34/x
  3. Step 3: Cross multiply
    191,918.34x = 264,846.65 × 107,035.34
  4. Step 4: Simplify right side
    191,918.34x = 28,347,949,371.20
  5. Step 5: Solve for x
    x = 28,347,949,371.20/191,918.34
  6. Step 6: Final answer
    x = 147,708.39

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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.