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Finding the Fourth Proportional to 191,876.45, 264,736.35 and 123,896.28

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Solution

The fourth proportional to 191,876.45, 264,736.35 and 123,896.28 is: 170,942.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,876.45 : 264,736.35 = 123,896.28 : x
  2. Step 2: Convert to fraction form
    191,876.45/264,736.35 = 123,896.28/x
  3. Step 3: Cross multiply
    191,876.45x = 264,736.35 × 123,896.28
  4. Step 4: Simplify right side
    191,876.45x = 32,799,849,938.54
  5. Step 5: Solve for x
    x = 32,799,849,938.54/191,876.45
  6. Step 6: Final answer
    x = 170,942.56

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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.