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Finding the Fourth Proportional to 84,559.52, 116,739.96 and 57,740.96

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Solution

The fourth proportional to 84,559.52, 116,739.96 and 57,740.96 is: 79,715.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,559.52 : 116,739.96 = 57,740.96 : x
  2. Step 2: Convert to fraction form
    84,559.52/116,739.96 = 57,740.96/x
  3. Step 3: Cross multiply
    84,559.52x = 116,739.96 × 57,740.96
  4. Step 4: Simplify right side
    84,559.52x = 6,740,677,360.76
  5. Step 5: Solve for x
    x = 6,740,677,360.76/84,559.52
  6. Step 6: Final answer
    x = 79,715.18

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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.