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Finding the Fourth Proportional to 104,662.55, 157,030.28 and 45,540.65

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Solution

The fourth proportional to 104,662.55, 157,030.28 and 45,540.65 is: 68,326.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,662.55 : 157,030.28 = 45,540.65 : x
  2. Step 2: Convert to fraction form
    104,662.55/157,030.28 = 45,540.65/x
  3. Step 3: Cross multiply
    104,662.55x = 157,030.28 × 45,540.65
  4. Step 4: Simplify right side
    104,662.55x = 7,151,260,793.18
  5. Step 5: Solve for x
    x = 7,151,260,793.18/104,662.55
  6. Step 6: Final answer
    x = 68,326.84

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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.