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Finding the Fourth Proportional to 259,193.54, 387,912.45 and 159,416.93

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Solution

The fourth proportional to 259,193.54, 387,912.45 and 159,416.93 is: 238,585.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,193.54 : 387,912.45 = 159,416.93 : x
  2. Step 2: Convert to fraction form
    259,193.54/387,912.45 = 159,416.93/x
  3. Step 3: Cross multiply
    259,193.54x = 387,912.45 × 159,416.93
  4. Step 4: Simplify right side
    259,193.54x = 61,839,811,887.78
  5. Step 5: Solve for x
    x = 61,839,811,887.78/259,193.54
  6. Step 6: Final answer
    x = 238,585.47

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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.