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Finding the Fourth Proportional to 73,619.76, 110,387.40 and 34,138.32

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Solution

The fourth proportional to 73,619.76, 110,387.40 and 34,138.32 is: 51,187.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,619.76 : 110,387.40 = 34,138.32 : x
  2. Step 2: Convert to fraction form
    73,619.76/110,387.40 = 34,138.32/x
  3. Step 3: Cross multiply
    73,619.76x = 110,387.40 × 34,138.32
  4. Step 4: Simplify right side
    73,619.76x = 3,768,440,385.17
  5. Step 5: Solve for x
    x = 3,768,440,385.17/73,619.76
  6. Step 6: Final answer
    x = 51,187.89

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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.