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Finding the Fourth Proportional to 335,423.52, 502,785.27 and 135,881.64

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Solution

The fourth proportional to 335,423.52, 502,785.27 and 135,881.64 is: 203,680.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,423.52 : 502,785.27 = 135,881.64 : x
  2. Step 2: Convert to fraction form
    335,423.52/502,785.27 = 135,881.64/x
  3. Step 3: Cross multiply
    335,423.52x = 502,785.27 × 135,881.64
  4. Step 4: Simplify right side
    335,423.52x = 68,319,287,055.44
  5. Step 5: Solve for x
    x = 68,319,287,055.44/335,423.52
  6. Step 6: Final answer
    x = 203,680.67

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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.