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Finding the Fourth Proportional to 101,078.40, 151,617.60 and 56,736.30

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Solution

The fourth proportional to 101,078.40, 151,617.60 and 56,736.30 is: 85,104.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,078.40 : 151,617.60 = 56,736.30 : x
  2. Step 2: Convert to fraction form
    101,078.40/151,617.60 = 56,736.30/x
  3. Step 3: Cross multiply
    101,078.40x = 151,617.60 × 56,736.30
  4. Step 4: Simplify right side
    101,078.40x = 8,602,221,638.88
  5. Step 5: Solve for x
    x = 8,602,221,638.88/101,078.40
  6. Step 6: Final answer
    x = 85,104.45

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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.