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Finding the Fourth Proportional to 136,632.40, 204,948.60 and 131,383.60

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Solution

The fourth proportional to 136,632.40, 204,948.60 and 131,383.60 is: 197,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,632.40 : 204,948.60 = 131,383.60 : x
  2. Step 2: Convert to fraction form
    136,632.40/204,948.60 = 131,383.60/x
  3. Step 3: Cross multiply
    136,632.40x = 204,948.60 × 131,383.60
  4. Step 4: Simplify right side
    136,632.40x = 26,926,884,882.96
  5. Step 5: Solve for x
    x = 26,926,884,882.96/136,632.40
  6. Step 6: Final answer
    x = 197,075.40

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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.