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Finding the Fourth Proportional to 187,694.79, 259,018.92 and 102,813.27

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Solution

The fourth proportional to 187,694.79, 259,018.92 and 102,813.27 is: 141,882.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,694.79 : 259,018.92 = 102,813.27 : x
  2. Step 2: Convert to fraction form
    187,694.79/259,018.92 = 102,813.27/x
  3. Step 3: Cross multiply
    187,694.79x = 259,018.92 × 102,813.27
  4. Step 4: Simplify right side
    187,694.79x = 26,630,582,157.07
  5. Step 5: Solve for x
    x = 26,630,582,157.07/187,694.79
  6. Step 6: Final answer
    x = 141,882.37

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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.