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Finding the Fourth Proportional to 76,464.60, 114,640.98 and 51,442.44

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Solution

The fourth proportional to 76,464.60, 114,640.98 and 51,442.44 is: 77,126.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,464.60 : 114,640.98 = 51,442.44 : x
  2. Step 2: Convert to fraction form
    76,464.60/114,640.98 = 51,442.44/x
  3. Step 3: Cross multiply
    76,464.60x = 114,640.98 × 51,442.44
  4. Step 4: Simplify right side
    76,464.60x = 5,897,411,735.19
  5. Step 5: Solve for x
    x = 5,897,411,735.19/76,464.60
  6. Step 6: Final answer
    x = 77,126.04

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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.