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Finding the Fourth Proportional to 104,980.91, 157,536.67 and 42,651.41

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Solution

The fourth proportional to 104,980.91, 157,536.67 and 42,651.41 is: 64,003.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,980.91 : 157,536.67 = 42,651.41 : x
  2. Step 2: Convert to fraction form
    104,980.91/157,536.67 = 42,651.41/x
  3. Step 3: Cross multiply
    104,980.91x = 157,536.67 × 42,651.41
  4. Step 4: Simplify right side
    104,980.91x = 6,719,161,293.97
  5. Step 5: Solve for x
    x = 6,719,161,293.97/104,980.91
  6. Step 6: Final answer
    x = 64,003.65

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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.