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Finding the Fourth Proportional to 191,063.48, 263,672.04 and 105,026.90

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Solution

The fourth proportional to 191,063.48, 263,672.04 and 105,026.90 is: 144,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,063.48 : 263,672.04 = 105,026.90 : x
  2. Step 2: Convert to fraction form
    191,063.48/263,672.04 = 105,026.90/x
  3. Step 3: Cross multiply
    191,063.48x = 263,672.04 × 105,026.90
  4. Step 4: Simplify right side
    191,063.48x = 27,692,656,977.88
  5. Step 5: Solve for x
    x = 27,692,656,977.88/191,063.48
  6. Step 6: Final answer
    x = 144,939.56

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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.