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Finding the Fourth Proportional to 194,681.80, 292,022.70 and 131,696.20

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Solution

The fourth proportional to 194,681.80, 292,022.70 and 131,696.20 is: 197,544.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,681.80 : 292,022.70 = 131,696.20 : x
  2. Step 2: Convert to fraction form
    194,681.80/292,022.70 = 131,696.20/x
  3. Step 3: Cross multiply
    194,681.80x = 292,022.70 × 131,696.20
  4. Step 4: Simplify right side
    194,681.80x = 38,458,279,903.74
  5. Step 5: Solve for x
    x = 38,458,279,903.74/194,681.80
  6. Step 6: Final answer
    x = 197,544.30

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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.