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Finding the Fourth Proportional to 92,580.52, 138,877.98 and 30,257.32

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Solution

The fourth proportional to 92,580.52, 138,877.98 and 30,257.32 is: 45,388.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,580.52 : 138,877.98 = 30,257.32 : x
  2. Step 2: Convert to fraction form
    92,580.52/138,877.98 = 30,257.32/x
  3. Step 3: Cross multiply
    92,580.52x = 138,877.98 × 30,257.32
  4. Step 4: Simplify right side
    92,580.52x = 4,202,075,481.81
  5. Step 5: Solve for x
    x = 4,202,075,481.81/92,580.52
  6. Step 6: Final answer
    x = 45,388.33

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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.