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Finding the Fourth Proportional to 76,442.40, 114,663.60 and 29,664.90

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Solution

The fourth proportional to 76,442.40, 114,663.60 and 29,664.90 is: 44,497.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,442.40 : 114,663.60 = 29,664.90 : x
  2. Step 2: Convert to fraction form
    76,442.40/114,663.60 = 29,664.90/x
  3. Step 3: Cross multiply
    76,442.40x = 114,663.60 × 29,664.90
  4. Step 4: Simplify right side
    76,442.40x = 3,401,484,227.64
  5. Step 5: Solve for x
    x = 3,401,484,227.64/76,442.40
  6. Step 6: Final answer
    x = 44,497.35

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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.