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Finding the Fourth Proportional to 209,599.76, 289,238.60 and 114,106.79

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Solution

The fourth proportional to 209,599.76, 289,238.60 and 114,106.79 is: 157,462.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,599.76 : 289,238.60 = 114,106.79 : x
  2. Step 2: Convert to fraction form
    209,599.76/289,238.60 = 114,106.79/x
  3. Step 3: Cross multiply
    209,599.76x = 289,238.60 × 114,106.79
  4. Step 4: Simplify right side
    209,599.76x = 33,004,087,619.56
  5. Step 5: Solve for x
    x = 33,004,087,619.56/209,599.76
  6. Step 6: Final answer
    x = 157,462.43

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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.