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Finding the Fourth Proportional to 113,168.98, 169,731.60 and 107,549.20

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Solution

The fourth proportional to 113,168.98, 169,731.60 and 107,549.20 is: 161,303.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,168.98 : 169,731.60 = 107,549.20 : x
  2. Step 2: Convert to fraction form
    113,168.98/169,731.60 = 107,549.20/x
  3. Step 3: Cross multiply
    113,168.98x = 169,731.60 × 107,549.20
  4. Step 4: Simplify right side
    113,168.98x = 18,254,497,794.72
  5. Step 5: Solve for x
    x = 18,254,497,794.72/113,168.98
  6. Step 6: Final answer
    x = 161,303.02

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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.