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Finding the Fourth Proportional to 191,887.02, 264,805.11 and 105,849.03

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Solution

The fourth proportional to 191,887.02, 264,805.11 and 105,849.03 is: 146,072.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,887.02 : 264,805.11 = 105,849.03 : x
  2. Step 2: Convert to fraction form
    191,887.02/264,805.11 = 105,849.03/x
  3. Step 3: Cross multiply
    191,887.02x = 264,805.11 × 105,849.03
  4. Step 4: Simplify right side
    191,887.02x = 28,029,364,032.54
  5. Step 5: Solve for x
    x = 28,029,364,032.54/191,887.02
  6. Step 6: Final answer
    x = 146,072.23

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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.