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Finding the Fourth Proportional to 113,203.48, 169,783.44 and 107,583.88

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Solution

The fourth proportional to 113,203.48, 169,783.44 and 107,583.88 is: 161,355.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,203.48 : 169,783.44 = 107,583.88 : x
  2. Step 2: Convert to fraction form
    113,203.48/169,783.44 = 107,583.88/x
  3. Step 3: Cross multiply
    113,203.48x = 169,783.44 × 107,583.88
  4. Step 4: Simplify right side
    113,203.48x = 18,265,961,234.95
  5. Step 5: Solve for x
    x = 18,265,961,234.95/113,203.48
  6. Step 6: Final answer
    x = 161,355.12

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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.