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Finding the Fourth Proportional to 89,292.63, 123,223.92 and 53,503.41

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Solution

The fourth proportional to 89,292.63, 123,223.92 and 53,503.41 is: 73,834.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,292.63 : 123,223.92 = 53,503.41 : x
  2. Step 2: Convert to fraction form
    89,292.63/123,223.92 = 53,503.41/x
  3. Step 3: Cross multiply
    89,292.63x = 123,223.92 × 53,503.41
  4. Step 4: Simplify right side
    89,292.63x = 6,592,899,913.57
  5. Step 5: Solve for x
    x = 6,592,899,913.57/89,292.63
  6. Step 6: Final answer
    x = 73,834.76

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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.