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Finding the Fourth Proportional to 207,951.99, 286,841.60 and 136,336.60

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Solution

The fourth proportional to 207,951.99, 286,841.60 and 136,336.60 is: 188,057.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,951.99 : 286,841.60 = 136,336.60 : x
  2. Step 2: Convert to fraction form
    207,951.99/286,841.60 = 136,336.60/x
  3. Step 3: Cross multiply
    207,951.99x = 286,841.60 × 136,336.60
  4. Step 4: Simplify right side
    207,951.99x = 39,107,009,437.58
  5. Step 5: Solve for x
    x = 39,107,009,437.58/207,951.99
  6. Step 6: Final answer
    x = 188,057.87

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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.