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Finding the Fourth Proportional to 264,539.30, 397,068.15 and 131,569.70

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Solution

The fourth proportional to 264,539.30, 397,068.15 and 131,569.70 is: 197,483.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,539.30 : 397,068.15 = 131,569.70 : x
  2. Step 2: Convert to fraction form
    264,539.30/397,068.15 = 131,569.70/x
  3. Step 3: Cross multiply
    264,539.30x = 397,068.15 × 131,569.70
  4. Step 4: Simplify right side
    264,539.30x = 52,242,137,375.06
  5. Step 5: Solve for x
    x = 52,242,137,375.06/264,539.30
  6. Step 6: Final answer
    x = 197,483.46

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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.