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Finding the Fourth Proportional to 311,576.92, 429,975.60 and 168,336.52

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Solution

The fourth proportional to 311,576.92, 429,975.60 and 168,336.52 is: 232,304.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,576.92 : 429,975.60 = 168,336.52 : x
  2. Step 2: Convert to fraction form
    311,576.92/429,975.60 = 168,336.52/x
  3. Step 3: Cross multiply
    311,576.92x = 429,975.60 × 168,336.52
  4. Step 4: Simplify right side
    311,576.92x = 72,380,596,188.91
  5. Step 5: Solve for x
    x = 72,380,596,188.91/311,576.92
  6. Step 6: Final answer
    x = 232,304.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.