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Finding the Fourth Proportional to 183,892.45, 253,771.80 and 103,319.93

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Solution

The fourth proportional to 183,892.45, 253,771.80 and 103,319.93 is: 142,581.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,892.45 : 253,771.80 = 103,319.93 : x
  2. Step 2: Convert to fraction form
    183,892.45/253,771.80 = 103,319.93/x
  3. Step 3: Cross multiply
    183,892.45x = 253,771.80 × 103,319.93
  4. Step 4: Simplify right side
    183,892.45x = 26,219,684,611.97
  5. Step 5: Solve for x
    x = 26,219,684,611.97/183,892.45
  6. Step 6: Final answer
    x = 142,581.63

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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.