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Finding the Fourth Proportional to 191,119.95, 263,722.64 and 105,064.74

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Solution

The fourth proportional to 191,119.95, 263,722.64 and 105,064.74 is: 144,976.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,119.95 : 263,722.64 = 105,064.74 : x
  2. Step 2: Convert to fraction form
    191,119.95/263,722.64 = 105,064.74/x
  3. Step 3: Cross multiply
    191,119.95x = 263,722.64 × 105,064.74
  4. Step 4: Simplify right side
    191,119.95x = 27,707,950,078.39
  5. Step 5: Solve for x
    x = 27,707,950,078.39/191,119.95
  6. Step 6: Final answer
    x = 144,976.75

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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.