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Finding the Fourth Proportional to 207,940.88, 286,958.76 and 118,516.88

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Solution

The fourth proportional to 207,940.88, 286,958.76 and 118,516.88 is: 163,553.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,940.88 : 286,958.76 = 118,516.88 : x
  2. Step 2: Convert to fraction form
    207,940.88/286,958.76 = 118,516.88/x
  3. Step 3: Cross multiply
    207,940.88x = 286,958.76 × 118,516.88
  4. Step 4: Simplify right side
    207,940.88x = 34,009,456,923.87
  5. Step 5: Solve for x
    x = 34,009,456,923.87/207,940.88
  6. Step 6: Final answer
    x = 163,553.49

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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.