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Finding the Fourth Proportional to 86,077.99, 129,124.43 and 23,748.49

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Solution

The fourth proportional to 86,077.99, 129,124.43 and 23,748.49 is: 35,624.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,077.99 : 129,124.43 = 23,748.49 : x
  2. Step 2: Convert to fraction form
    86,077.99/129,124.43 = 23,748.49/x
  3. Step 3: Cross multiply
    86,077.99x = 129,124.43 × 23,748.49
  4. Step 4: Simplify right side
    86,077.99x = 3,066,510,234.61
  5. Step 5: Solve for x
    x = 3,066,510,234.61/86,077.99
  6. Step 6: Final answer
    x = 35,624.79

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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.