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Finding the Fourth Proportional to 124,741.76, 187,245.84 and 53,699.56

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Solution

The fourth proportional to 124,741.76, 187,245.84 and 53,699.56 is: 80,606.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,741.76 : 187,245.84 = 53,699.56 : x
  2. Step 2: Convert to fraction form
    124,741.76/187,245.84 = 53,699.56/x
  3. Step 3: Cross multiply
    124,741.76x = 187,245.84 × 53,699.56
  4. Step 4: Simplify right side
    124,741.76x = 10,055,019,219.83
  5. Step 5: Solve for x
    x = 10,055,019,219.83/124,741.76
  6. Step 6: Final answer
    x = 80,606.68

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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.