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Finding the Fourth Proportional to 127,178.52, 190,801.88 and 44,072.52

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Solution

The fourth proportional to 127,178.52, 190,801.88 and 44,072.52 is: 66,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,178.52 : 190,801.88 = 44,072.52 : x
  2. Step 2: Convert to fraction form
    127,178.52/190,801.88 = 44,072.52/x
  3. Step 3: Cross multiply
    127,178.52x = 190,801.88 × 44,072.52
  4. Step 4: Simplify right side
    127,178.52x = 8,409,119,672.34
  5. Step 5: Solve for x
    x = 8,409,119,672.34/127,178.52
  6. Step 6: Final answer
    x = 66,120.60

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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.