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Finding the Fourth Proportional to 223,615.60, 335,358.60 and 81,444.40

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Solution

The fourth proportional to 223,615.60, 335,358.60 and 81,444.40 is: 122,143.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,615.60 : 335,358.60 = 81,444.40 : x
  2. Step 2: Convert to fraction form
    223,615.60/335,358.60 = 81,444.40/x
  3. Step 3: Cross multiply
    223,615.60x = 335,358.60 × 81,444.40
  4. Step 4: Simplify right side
    223,615.60x = 27,313,079,961.84
  5. Step 5: Solve for x
    x = 27,313,079,961.84/223,615.60
  6. Step 6: Final answer
    x = 122,143.00

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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.