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Finding the Fourth Proportional to 144,408.48, 216,563.40 and 73,303.80

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Solution

The fourth proportional to 144,408.48, 216,563.40 and 73,303.80 is: 109,930.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,408.48 : 216,563.40 = 73,303.80 : x
  2. Step 2: Convert to fraction form
    144,408.48/216,563.40 = 73,303.80/x
  3. Step 3: Cross multiply
    144,408.48x = 216,563.40 × 73,303.80
  4. Step 4: Simplify right side
    144,408.48x = 15,874,920,160.92
  5. Step 5: Solve for x
    x = 15,874,920,160.92/144,408.48
  6. Step 6: Final answer
    x = 109,930.66

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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.