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Finding the Fourth Proportional to 191,997.33, 287,762.40 and 135,853.59

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Solution

The fourth proportional to 191,997.33, 287,762.40 and 135,853.59 is: 203,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,997.33 : 287,762.40 = 135,853.59 : x
  2. Step 2: Convert to fraction form
    191,997.33/287,762.40 = 135,853.59/x
  3. Step 3: Cross multiply
    191,997.33x = 287,762.40 × 135,853.59
  4. Step 4: Simplify right side
    191,997.33x = 39,093,555,107.02
  5. Step 5: Solve for x
    x = 39,093,555,107.02/191,997.33
  6. Step 6: Final answer
    x = 203,615.10

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1.5x scale

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.