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Finding the Fourth Proportional to 73,539.34, 110,085.95 and 66,522.31

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Solution

The fourth proportional to 73,539.34, 110,085.95 and 66,522.31 is: 99,581.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,539.34 : 110,085.95 = 66,522.31 : x
  2. Step 2: Convert to fraction form
    73,539.34/110,085.95 = 66,522.31/x
  3. Step 3: Cross multiply
    73,539.34x = 110,085.95 × 66,522.31
  4. Step 4: Simplify right side
    73,539.34x = 7,323,171,583.64
  5. Step 5: Solve for x
    x = 7,323,171,583.64/73,539.34
  6. Step 6: Final answer
    x = 99,581.69

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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.