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Finding the Fourth Proportional to 64,941.40, 89,660.82 and 53,033.32

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Solution

The fourth proportional to 64,941.40, 89,660.82 and 53,033.32 is: 73,220.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,941.40 : 89,660.82 = 53,033.32 : x
  2. Step 2: Convert to fraction form
    64,941.40/89,660.82 = 53,033.32/x
  3. Step 3: Cross multiply
    64,941.40x = 89,660.82 × 53,033.32
  4. Step 4: Simplify right side
    64,941.40x = 4,755,010,958.52
  5. Step 5: Solve for x
    x = 4,755,010,958.52/64,941.40
  6. Step 6: Final answer
    x = 73,220.03

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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.