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Finding the Fourth Proportional to 363,922.63, 545,934.98 and 127,211.47

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Solution

The fourth proportional to 363,922.63, 545,934.98 and 127,211.47 is: 190,835.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,922.63 : 545,934.98 = 127,211.47 : x
  2. Step 2: Convert to fraction form
    363,922.63/545,934.98 = 127,211.47/x
  3. Step 3: Cross multiply
    363,922.63x = 545,934.98 × 127,211.47
  4. Step 4: Simplify right side
    363,922.63x = 69,449,190,283.41
  5. Step 5: Solve for x
    x = 69,449,190,283.41/363,922.63
  6. Step 6: Final answer
    x = 190,835.04

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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.