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Finding the Fourth Proportional to 187,694.68, 259,018.72 and 102,814.80

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Solution

The fourth proportional to 187,694.68, 259,018.72 and 102,814.80 is: 141,884.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,694.68 : 259,018.72 = 102,814.80 : x
  2. Step 2: Convert to fraction form
    187,694.68/259,018.72 = 102,814.80/x
  3. Step 3: Cross multiply
    187,694.68x = 259,018.72 × 102,814.80
  4. Step 4: Simplify right side
    187,694.68x = 26,630,957,893.06
  5. Step 5: Solve for x
    x = 26,630,957,893.06/187,694.68
  6. Step 6: Final answer
    x = 141,884.46

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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.