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Finding the Fourth Proportional to 183,489, 275,279.74 and 52,161

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Solution

The fourth proportional to 183,489, 275,279.74 and 52,161 is: 78,254.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,489 : 275,279.74 = 52,161 : x
  2. Step 2: Convert to fraction form
    183,489/275,279.74 = 52,161/x
  3. Step 3: Cross multiply
    183,489x = 275,279.74 × 52,161
  4. Step 4: Simplify right side
    183,489x = 14,358,866,518.14
  5. Step 5: Solve for x
    x = 14,358,866,518.14/183,489
  6. Step 6: Final answer
    x = 78,254.64

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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.