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Finding the Fourth Proportional to 136,532.67, 204,839.33 and 70,019.40

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Solution

The fourth proportional to 136,532.67, 204,839.33 and 70,019.40 is: 105,049.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,532.67 : 204,839.33 = 70,019.40 : x
  2. Step 2: Convert to fraction form
    136,532.67/204,839.33 = 70,019.40/x
  3. Step 3: Cross multiply
    136,532.67x = 204,839.33 × 70,019.40
  4. Step 4: Simplify right side
    136,532.67x = 14,342,726,066.58
  5. Step 5: Solve for x
    x = 14,342,726,066.58/136,532.67
  6. Step 6: Final answer
    x = 105,049.77

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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.