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Finding the Fourth Proportional to 191,686.33, 287,532.47 and 56,764.04

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Solution

The fourth proportional to 191,686.33, 287,532.47 and 56,764.04 is: 85,146.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,686.33 : 287,532.47 = 56,764.04 : x
  2. Step 2: Convert to fraction form
    191,686.33/287,532.47 = 56,764.04/x
  3. Step 3: Cross multiply
    191,686.33x = 287,532.47 × 56,764.04
  4. Step 4: Simplify right side
    191,686.33x = 16,321,505,276.25
  5. Step 5: Solve for x
    x = 16,321,505,276.25/191,686.33
  6. Step 6: Final answer
    x = 85,146.95

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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.