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Finding the Fourth Proportional to 51,522.66, 77,285.52 and 43,978.66

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Solution

The fourth proportional to 51,522.66, 77,285.52 and 43,978.66 is: 65,969.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,522.66 : 77,285.52 = 43,978.66 : x
  2. Step 2: Convert to fraction form
    51,522.66/77,285.52 = 43,978.66/x
  3. Step 3: Cross multiply
    51,522.66x = 77,285.52 × 43,978.66
  4. Step 4: Simplify right side
    51,522.66x = 3,398,913,193.90
  5. Step 5: Solve for x
    x = 3,398,913,193.90/51,522.66
  6. Step 6: Final answer
    x = 65,969.28

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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.