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Finding the Fourth Proportional to 303,123.80, 454,669.32 and 92,761.76

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Solution

The fourth proportional to 303,123.80, 454,669.32 and 92,761.76 is: 139,137.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,123.80 : 454,669.32 = 92,761.76 : x
  2. Step 2: Convert to fraction form
    303,123.80/454,669.32 = 92,761.76/x
  3. Step 3: Cross multiply
    303,123.80x = 454,669.32 × 92,761.76
  4. Step 4: Simplify right side
    303,123.80x = 42,175,926,341.20
  5. Step 5: Solve for x
    x = 42,175,926,341.20/303,123.80
  6. Step 6: Final answer
    x = 139,137.63

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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.