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Finding the Fourth Proportional to 113,992.94, 157,305.38 and 63,003.04

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Solution

The fourth proportional to 113,992.94, 157,305.38 and 63,003.04 is: 86,941.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,992.94 : 157,305.38 = 63,003.04 : x
  2. Step 2: Convert to fraction form
    113,992.94/157,305.38 = 63,003.04/x
  3. Step 3: Cross multiply
    113,992.94x = 157,305.38 × 63,003.04
  4. Step 4: Simplify right side
    113,992.94x = 9,910,716,440.08
  5. Step 5: Solve for x
    x = 9,910,716,440.08/113,992.94
  6. Step 6: Final answer
    x = 86,941.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.