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Finding the Fourth Proportional to 191,511.72, 263,836.62 and 133,268.32

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Solution

The fourth proportional to 191,511.72, 263,836.62 and 133,268.32 is: 183,597.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,511.72 : 263,836.62 = 133,268.32 : x
  2. Step 2: Convert to fraction form
    191,511.72/263,836.62 = 133,268.32/x
  3. Step 3: Cross multiply
    191,511.72x = 263,836.62 × 133,268.32
  4. Step 4: Simplify right side
    191,511.72x = 35,161,061,782.70
  5. Step 5: Solve for x
    x = 35,161,061,782.70/191,511.72
  6. Step 6: Final answer
    x = 183,597.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.