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Finding the Fourth Proportional to 303,256.15, 454,878 and 134,730.79

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Solution

The fourth proportional to 303,256.15, 454,878 and 134,730.79 is: 202,093.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,256.15 : 454,878 = 134,730.79 : x
  2. Step 2: Convert to fraction form
    303,256.15/454,878 = 134,730.79/x
  3. Step 3: Cross multiply
    303,256.15x = 454,878 × 134,730.79
  4. Step 4: Simplify right side
    303,256.15x = 61,286,072,293.62
  5. Step 5: Solve for x
    x = 61,286,072,293.62/303,256.15
  6. Step 6: Final answer
    x = 202,093.42

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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.