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Finding the Fourth Proportional to 64,442.40, 89,002.56 and 44,360.88

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Solution

The fourth proportional to 64,442.40, 89,002.56 and 44,360.88 is: 61,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,442.40 : 89,002.56 = 44,360.88 : x
  2. Step 2: Convert to fraction form
    64,442.40/89,002.56 = 44,360.88/x
  3. Step 3: Cross multiply
    64,442.40x = 89,002.56 × 44,360.88
  4. Step 4: Simplify right side
    64,442.40x = 3,948,231,883.85
  5. Step 5: Solve for x
    x = 3,948,231,883.85/64,442.40
  6. Step 6: Final answer
    x = 61,267.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.