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Finding the Fourth Proportional to 191,696.94, 287,676.45 and 67,037.94

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Solution

The fourth proportional to 191,696.94, 287,676.45 and 67,037.94 is: 100,602.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,696.94 : 287,676.45 = 67,037.94 : x
  2. Step 2: Convert to fraction form
    191,696.94/287,676.45 = 67,037.94/x
  3. Step 3: Cross multiply
    191,696.94x = 287,676.45 × 67,037.94
  4. Step 4: Simplify right side
    191,696.94x = 19,285,236,594.51
  5. Step 5: Solve for x
    x = 19,285,236,594.51/191,696.94
  6. Step 6: Final answer
    x = 100,602.74

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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.