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Finding the Fourth Proportional to 193,032.60, 289,505.70 and 126,936.60

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Solution

The fourth proportional to 193,032.60, 289,505.70 and 126,936.60 is: 190,376.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,032.60 : 289,505.70 = 126,936.60 : x
  2. Step 2: Convert to fraction form
    193,032.60/289,505.70 = 126,936.60/x
  3. Step 3: Cross multiply
    193,032.60x = 289,505.70 × 126,936.60
  4. Step 4: Simplify right side
    193,032.60x = 36,748,869,238.62
  5. Step 5: Solve for x
    x = 36,748,869,238.62/193,032.60
  6. Step 6: Final answer
    x = 190,376.49

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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.