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Finding the Fourth Proportional to 113,158.69, 169,479.69 and 54,035.88

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Solution

The fourth proportional to 113,158.69, 169,479.69 and 54,035.88 is: 80,930.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,158.69 : 169,479.69 = 54,035.88 : x
  2. Step 2: Convert to fraction form
    113,158.69/169,479.69 = 54,035.88/x
  3. Step 3: Cross multiply
    113,158.69x = 169,479.69 × 54,035.88
  4. Step 4: Simplify right side
    113,158.69x = 9,157,983,657.05
  5. Step 5: Solve for x
    x = 9,157,983,657.05/113,158.69
  6. Step 6: Final answer
    x = 80,930.45

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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.