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Finding the Fourth Proportional to 493,007.62, 739,622.20 and 156,068.48

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Solution

The fourth proportional to 493,007.62, 739,622.20 and 156,068.48 is: 234,137.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,007.62 : 739,622.20 = 156,068.48 : x
  2. Step 2: Convert to fraction form
    493,007.62/739,622.20 = 156,068.48/x
  3. Step 3: Cross multiply
    493,007.62x = 739,622.20 × 156,068.48
  4. Step 4: Simplify right side
    493,007.62x = 115,431,712,528.26
  5. Step 5: Solve for x
    x = 115,431,712,528.26/493,007.62
  6. Step 6: Final answer
    x = 234,137.79

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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.