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Finding the Fourth Proportional to 303,072.75, 454,611.39 and 134,547.78

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Solution

The fourth proportional to 303,072.75, 454,611.39 and 134,547.78 is: 201,822.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,072.75 : 454,611.39 = 134,547.78 : x
  2. Step 2: Convert to fraction form
    303,072.75/454,611.39 = 134,547.78/x
  3. Step 3: Cross multiply
    303,072.75x = 454,611.39 × 134,547.78
  4. Step 4: Simplify right side
    303,072.75x = 61,166,953,287.21
  5. Step 5: Solve for x
    x = 61,166,953,287.21/303,072.75
  6. Step 6: Final answer
    x = 201,822.68

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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.