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Finding the Fourth Proportional to 60,003.40, 89,907.90 and 51,255.40

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Solution

The fourth proportional to 60,003.40, 89,907.90 and 51,255.40 is: 76,800.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,003.40 : 89,907.90 = 51,255.40 : x
  2. Step 2: Convert to fraction form
    60,003.40/89,907.90 = 51,255.40/x
  3. Step 3: Cross multiply
    60,003.40x = 89,907.90 × 51,255.40
  4. Step 4: Simplify right side
    60,003.40x = 4,608,265,377.66
  5. Step 5: Solve for x
    x = 4,608,265,377.66/60,003.40
  6. Step 6: Final answer
    x = 76,800.07

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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.