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Finding the Fourth Proportional to 127,342.56, 190,483.44 and 117,894.72

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Solution

The fourth proportional to 127,342.56, 190,483.44 and 117,894.72 is: 176,351.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,342.56 : 190,483.44 = 117,894.72 : x
  2. Step 2: Convert to fraction form
    127,342.56/190,483.44 = 117,894.72/x
  3. Step 3: Cross multiply
    127,342.56x = 190,483.44 × 117,894.72
  4. Step 4: Simplify right side
    127,342.56x = 22,456,991,823.44
  5. Step 5: Solve for x
    x = 22,456,991,823.44/127,342.56
  6. Step 6: Final answer
    x = 176,351.03

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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.