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Finding the Fourth Proportional to 303,761.35, 455,706.45 and 104,028.11

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Solution

The fourth proportional to 303,761.35, 455,706.45 and 104,028.11 is: 156,064.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,761.35 : 455,706.45 = 104,028.11 : x
  2. Step 2: Convert to fraction form
    303,761.35/455,706.45 = 104,028.11/x
  3. Step 3: Cross multiply
    303,761.35x = 455,706.45 × 104,028.11
  4. Step 4: Simplify right side
    303,761.35x = 47,406,278,429.78
  5. Step 5: Solve for x
    x = 47,406,278,429.78/303,761.35
  6. Step 6: Final answer
    x = 156,064.22

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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.