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Finding the Fourth Proportional to 334,043.52, 501,060.96 and 81,324.48

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Solution

The fourth proportional to 334,043.52, 501,060.96 and 81,324.48 is: 121,985.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,043.52 : 501,060.96 = 81,324.48 : x
  2. Step 2: Convert to fraction form
    334,043.52/501,060.96 = 81,324.48/x
  3. Step 3: Cross multiply
    334,043.52x = 501,060.96 × 81,324.48
  4. Step 4: Simplify right side
    334,043.52x = 40,748,522,020.30
  5. Step 5: Solve for x
    x = 40,748,522,020.30/334,043.52
  6. Step 6: Final answer
    x = 121,985.67

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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.