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Finding the Fourth Proportional to 118,249.56, 163,184.34 and 75,808.08

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Solution

The fourth proportional to 118,249.56, 163,184.34 and 75,808.08 is: 104,615.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,249.56 : 163,184.34 = 75,808.08 : x
  2. Step 2: Convert to fraction form
    118,249.56/163,184.34 = 75,808.08/x
  3. Step 3: Cross multiply
    118,249.56x = 163,184.34 × 75,808.08
  4. Step 4: Simplify right side
    118,249.56x = 12,370,691,501.47
  5. Step 5: Solve for x
    x = 12,370,691,501.47/118,249.56
  6. Step 6: Final answer
    x = 104,615.12

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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.