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Finding the Fourth Proportional to 57,707.66, 86,333.74 and 43,708.02

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Solution

The fourth proportional to 57,707.66, 86,333.74 and 43,708.02 is: 65,389.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,707.66 : 86,333.74 = 43,708.02 : x
  2. Step 2: Convert to fraction form
    57,707.66/86,333.74 = 43,708.02/x
  3. Step 3: Cross multiply
    57,707.66x = 86,333.74 × 43,708.02
  4. Step 4: Simplify right side
    57,707.66x = 3,773,476,834.59
  5. Step 5: Solve for x
    x = 3,773,476,834.59/57,707.66
  6. Step 6: Final answer
    x = 65,389.53

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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.