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Finding the Fourth Proportional to 191,069.68, 263,675.40 and 105,034.44

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Solution

The fourth proportional to 191,069.68, 263,675.40 and 105,034.44 is: 144,947.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,069.68 : 263,675.40 = 105,034.44 : x
  2. Step 2: Convert to fraction form
    191,069.68/263,675.40 = 105,034.44/x
  3. Step 3: Cross multiply
    191,069.68x = 263,675.40 × 105,034.44
  4. Step 4: Simplify right side
    191,069.68x = 27,694,997,980.78
  5. Step 5: Solve for x
    x = 27,694,997,980.78/191,069.68
  6. Step 6: Final answer
    x = 144,947.11

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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.