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Finding the Fourth Proportional to 191,101.94, 263,713.96 and 105,060.30

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Solution

The fourth proportional to 191,101.94, 263,713.96 and 105,060.30 is: 144,979.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,101.94 : 263,713.96 = 105,060.30 : x
  2. Step 2: Convert to fraction form
    191,101.94/263,713.96 = 105,060.30/x
  3. Step 3: Cross multiply
    191,101.94x = 263,713.96 × 105,060.30
  4. Step 4: Simplify right side
    191,101.94x = 27,705,866,123.65
  5. Step 5: Solve for x
    x = 27,705,866,123.65/191,101.94
  6. Step 6: Final answer
    x = 144,979.51

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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.