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Finding the Fourth Proportional to 86,063.22, 118,734.06 and 63,455.88

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Solution

The fourth proportional to 86,063.22, 118,734.06 and 63,455.88 is: 87,544.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,063.22 : 118,734.06 = 63,455.88 : x
  2. Step 2: Convert to fraction form
    86,063.22/118,734.06 = 63,455.88/x
  3. Step 3: Cross multiply
    86,063.22x = 118,734.06 × 63,455.88
  4. Step 4: Simplify right side
    86,063.22x = 7,534,374,263.27
  5. Step 5: Solve for x
    x = 7,534,374,263.27/86,063.22
  6. Step 6: Final answer
    x = 87,544.65

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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.