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Finding the Fourth Proportional to 297,405.16, 445,174.62 and 156,737.32

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Solution

The fourth proportional to 297,405.16, 445,174.62 and 156,737.32 is: 234,614.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,405.16 : 445,174.62 = 156,737.32 : x
  2. Step 2: Convert to fraction form
    297,405.16/445,174.62 = 156,737.32/x
  3. Step 3: Cross multiply
    297,405.16x = 445,174.62 × 156,737.32
  4. Step 4: Simplify right side
    297,405.16x = 69,775,476,870.82
  5. Step 5: Solve for x
    x = 69,775,476,870.82/297,405.16
  6. Step 6: Final answer
    x = 234,614.21

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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.