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Finding the Fourth Proportional to 191,998.33, 287,763.90 and 135,854.59

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Solution

The fourth proportional to 191,998.33, 287,763.90 and 135,854.59 is: 203,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,998.33 : 287,763.90 = 135,854.59 : x
  2. Step 2: Convert to fraction form
    191,998.33/287,763.90 = 135,854.59/x
  3. Step 3: Cross multiply
    191,998.33x = 287,763.90 × 135,854.59
  4. Step 4: Simplify right side
    191,998.33x = 39,094,046,651.30
  5. Step 5: Solve for x
    x = 39,094,046,651.30/191,998.33
  6. Step 6: Final answer
    x = 203,616.60

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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.