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Finding the Fourth Proportional to 191,687.33, 287,533.97 and 56,765.04

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Solution

The fourth proportional to 191,687.33, 287,533.97 and 56,765.04 is: 85,148.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,687.33 : 287,533.97 = 56,765.04 : x
  2. Step 2: Convert to fraction form
    191,687.33/287,533.97 = 56,765.04/x
  3. Step 3: Cross multiply
    191,687.33x = 287,533.97 × 56,765.04
  4. Step 4: Simplify right side
    191,687.33x = 16,321,877,308.41
  5. Step 5: Solve for x
    x = 16,321,877,308.41/191,687.33
  6. Step 6: Final answer
    x = 85,148.44

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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.