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Finding the Fourth Proportional to 132,495.40, 198,283.82 and 126,984.16

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Solution

The fourth proportional to 132,495.40, 198,283.82 and 126,984.16 is: 190,036.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,495.40 : 198,283.82 = 126,984.16 : x
  2. Step 2: Convert to fraction form
    132,495.40/198,283.82 = 126,984.16/x
  3. Step 3: Cross multiply
    132,495.40x = 198,283.82 × 126,984.16
  4. Step 4: Simplify right side
    132,495.40x = 25,178,904,146.04
  5. Step 5: Solve for x
    x = 25,178,904,146.04/132,495.40
  6. Step 6: Final answer
    x = 190,036.07

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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.