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Finding the Fourth Proportional to 148,996.48, 223,401.28 and 55,425.28

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Solution

The fourth proportional to 148,996.48, 223,401.28 and 55,425.28 is: 83,103.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,996.48 : 223,401.28 = 55,425.28 : x
  2. Step 2: Convert to fraction form
    148,996.48/223,401.28 = 55,425.28/x
  3. Step 3: Cross multiply
    148,996.48x = 223,401.28 × 55,425.28
  4. Step 4: Simplify right side
    148,996.48x = 12,382,078,496.36
  5. Step 5: Solve for x
    x = 12,382,078,496.36/148,996.48
  6. Step 6: Final answer
    x = 83,103.16

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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.