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Finding the Fourth Proportional to 58,559.78, 80,812.46 and 31,702.26

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Solution

The fourth proportional to 58,559.78, 80,812.46 and 31,702.26 is: 43,749.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,559.78 : 80,812.46 = 31,702.26 : x
  2. Step 2: Convert to fraction form
    58,559.78/80,812.46 = 31,702.26/x
  3. Step 3: Cross multiply
    58,559.78x = 80,812.46 × 31,702.26
  4. Step 4: Simplify right side
    58,559.78x = 2,561,937,459.65
  5. Step 5: Solve for x
    x = 2,561,937,459.65/58,559.78
  6. Step 6: Final answer
    x = 43,749.10

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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.