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Finding the Fourth Proportional to 183,638.66, 253,177.72 and 119,865.74

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Solution

The fourth proportional to 183,638.66, 253,177.72 and 119,865.74 is: 165,255.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,638.66 : 253,177.72 = 119,865.74 : x
  2. Step 2: Convert to fraction form
    183,638.66/253,177.72 = 119,865.74/x
  3. Step 3: Cross multiply
    183,638.66x = 253,177.72 × 119,865.74
  4. Step 4: Simplify right side
    183,638.66x = 30,347,334,759.31
  5. Step 5: Solve for x
    x = 30,347,334,759.31/183,638.66
  6. Step 6: Final answer
    x = 165,255.70

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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.