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Finding the Fourth Proportional to 192,859.12, 289,288.64 and 59,740.48

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Solution

The fourth proportional to 192,859.12, 289,288.64 and 59,740.48 is: 89,610.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,859.12 : 289,288.64 = 59,740.48 : x
  2. Step 2: Convert to fraction form
    192,859.12/289,288.64 = 59,740.48/x
  3. Step 3: Cross multiply
    192,859.12x = 289,288.64 × 59,740.48
  4. Step 4: Simplify right side
    192,859.12x = 17,282,242,212.15
  5. Step 5: Solve for x
    x = 17,282,242,212.15/192,859.12
  6. Step 6: Final answer
    x = 89,610.71

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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.