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Finding the Fourth Proportional to 183,722.48, 275,353.68 and 78,418.16

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Solution

The fourth proportional to 183,722.48, 275,353.68 and 78,418.16 is: 117,529.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,722.48 : 275,353.68 = 78,418.16 : x
  2. Step 2: Convert to fraction form
    183,722.48/275,353.68 = 78,418.16/x
  3. Step 3: Cross multiply
    183,722.48x = 275,353.68 × 78,418.16
  4. Step 4: Simplify right side
    183,722.48x = 21,592,728,934.83
  5. Step 5: Solve for x
    x = 21,592,728,934.83/183,722.48
  6. Step 6: Final answer
    x = 117,529.05

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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.