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Finding the Fourth Proportional to 95,272.40, 142,811.40 and 55,809.20

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Solution

The fourth proportional to 95,272.40, 142,811.40 and 55,809.20 is: 83,656.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,272.40 : 142,811.40 = 55,809.20 : x
  2. Step 2: Convert to fraction form
    95,272.40/142,811.40 = 55,809.20/x
  3. Step 3: Cross multiply
    95,272.40x = 142,811.40 × 55,809.20
  4. Step 4: Simplify right side
    95,272.40x = 7,970,189,984.88
  5. Step 5: Solve for x
    x = 7,970,189,984.88/95,272.40
  6. Step 6: Final answer
    x = 83,656.86

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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.