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Finding the Fourth Proportional to 296,388.44, 444,655.56 and 86,023.40

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Solution

The fourth proportional to 296,388.44, 444,655.56 and 86,023.40 is: 129,056.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,388.44 : 444,655.56 = 86,023.40 : x
  2. Step 2: Convert to fraction form
    296,388.44/444,655.56 = 86,023.40/x
  3. Step 3: Cross multiply
    296,388.44x = 444,655.56 × 86,023.40
  4. Step 4: Simplify right side
    296,388.44x = 38,250,783,100.10
  5. Step 5: Solve for x
    x = 38,250,783,100.10/296,388.44
  6. Step 6: Final answer
    x = 129,056.26

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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.