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Finding the Fourth Proportional to 303,761.70, 455,642.55 and 93,372.30

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Solution

The fourth proportional to 303,761.70, 455,642.55 and 93,372.30 is: 140,058.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,761.70 : 455,642.55 = 93,372.30 : x
  2. Step 2: Convert to fraction form
    303,761.70/455,642.55 = 93,372.30/x
  3. Step 3: Cross multiply
    303,761.70x = 455,642.55 × 93,372.30
  4. Step 4: Simplify right side
    303,761.70x = 42,544,392,871.37
  5. Step 5: Solve for x
    x = 42,544,392,871.37/303,761.70
  6. Step 6: Final answer
    x = 140,058.45

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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.