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Finding the Fourth Proportional to 303,363.10, 455,001.45 and 103,692.70

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Solution

The fourth proportional to 303,363.10, 455,001.45 and 103,692.70 is: 155,524.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,363.10 : 455,001.45 = 103,692.70 : x
  2. Step 2: Convert to fraction form
    303,363.10/455,001.45 = 103,692.70/x
  3. Step 3: Cross multiply
    303,363.10x = 455,001.45 × 103,692.70
  4. Step 4: Simplify right side
    303,363.10x = 47,180,328,854.42
  5. Step 5: Solve for x
    x = 47,180,328,854.42/303,363.10
  6. Step 6: Final answer
    x = 155,524.28

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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.