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Finding the Fourth Proportional to 57,366.75, 85,890.66 and 43,284.30

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Solution

The fourth proportional to 57,366.75, 85,890.66 and 43,284.30 is: 64,806.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,366.75 : 85,890.66 = 43,284.30 : x
  2. Step 2: Convert to fraction form
    57,366.75/85,890.66 = 43,284.30/x
  3. Step 3: Cross multiply
    57,366.75x = 85,890.66 × 43,284.30
  4. Step 4: Simplify right side
    57,366.75x = 3,717,717,094.64
  5. Step 5: Solve for x
    x = 3,717,717,094.64/57,366.75
  6. Step 6: Final answer
    x = 64,806.13

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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.