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Finding the Fourth Proportional to 156,844.40, 235,007.40 and 133,516.40

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Solution

The fourth proportional to 156,844.40, 235,007.40 and 133,516.40 is: 200,053.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,844.40 : 235,007.40 = 133,516.40 : x
  2. Step 2: Convert to fraction form
    156,844.40/235,007.40 = 133,516.40/x
  3. Step 3: Cross multiply
    156,844.40x = 235,007.40 × 133,516.40
  4. Step 4: Simplify right side
    156,844.40x = 31,377,342,021.36
  5. Step 5: Solve for x
    x = 31,377,342,021.36/156,844.40
  6. Step 6: Final answer
    x = 200,053.95

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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.