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Finding the Fourth Proportional to 185,564.40, 278,330.40 and 60,905.40

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Solution

The fourth proportional to 185,564.40, 278,330.40 and 60,905.40 is: 91,352.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,564.40 : 278,330.40 = 60,905.40 : x
  2. Step 2: Convert to fraction form
    185,564.40/278,330.40 = 60,905.40/x
  3. Step 3: Cross multiply
    185,564.40x = 278,330.40 × 60,905.40
  4. Step 4: Simplify right side
    185,564.40x = 16,951,824,344.16
  5. Step 5: Solve for x
    x = 16,951,824,344.16/185,564.40
  6. Step 6: Final answer
    x = 91,352.78

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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.