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Finding the Fourth Proportional to 65,489.51, 98,302.98 and 58,040.75

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Solution

The fourth proportional to 65,489.51, 98,302.98 and 58,040.75 is: 87,122.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,489.51 : 98,302.98 = 58,040.75 : x
  2. Step 2: Convert to fraction form
    65,489.51/98,302.98 = 58,040.75/x
  3. Step 3: Cross multiply
    65,489.51x = 98,302.98 × 58,040.75
  4. Step 4: Simplify right side
    65,489.51x = 5,705,579,149.85
  5. Step 5: Solve for x
    x = 5,705,579,149.85/65,489.51
  6. Step 6: Final answer
    x = 87,122.03

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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.