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Finding the Fourth Proportional to 219,886.62, 303,692.13 and 148,142.07

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Solution

The fourth proportional to 219,886.62, 303,692.13 and 148,142.07 is: 204,603.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,886.62 : 303,692.13 = 148,142.07 : x
  2. Step 2: Convert to fraction form
    219,886.62/303,692.13 = 148,142.07/x
  3. Step 3: Cross multiply
    219,886.62x = 303,692.13 × 148,142.07
  4. Step 4: Simplify right side
    219,886.62x = 44,989,580,780.91
  5. Step 5: Solve for x
    x = 44,989,580,780.91/219,886.62
  6. Step 6: Final answer
    x = 204,603.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.