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Finding the Fourth Proportional to 191,861.94, 287,628.76 and 73,618.14

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Solution

The fourth proportional to 191,861.94, 287,628.76 and 73,618.14 is: 110,364.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,861.94 : 287,628.76 = 73,618.14 : x
  2. Step 2: Convert to fraction form
    191,861.94/287,628.76 = 73,618.14/x
  3. Step 3: Cross multiply
    191,861.94x = 287,628.76 × 73,618.14
  4. Step 4: Simplify right side
    191,861.94x = 21,174,694,321.71
  5. Step 5: Solve for x
    x = 21,174,694,321.71/191,861.94
  6. Step 6: Final answer
    x = 110,364.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.