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Finding the Fourth Proportional to 86,755.95, 119,748.60 and 50,465.88

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Solution

The fourth proportional to 86,755.95, 119,748.60 and 50,465.88 is: 69,657.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,755.95 : 119,748.60 = 50,465.88 : x
  2. Step 2: Convert to fraction form
    86,755.95/119,748.60 = 50,465.88/x
  3. Step 3: Cross multiply
    86,755.95x = 119,748.60 × 50,465.88
  4. Step 4: Simplify right side
    86,755.95x = 6,043,218,477.77
  5. Step 5: Solve for x
    x = 6,043,218,477.77/86,755.95
  6. Step 6: Final answer
    x = 69,657.68

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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.