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Finding the Fourth Proportional to 351,381.33, 527,070.24 and 85,141.89

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Solution

The fourth proportional to 351,381.33, 527,070.24 and 85,141.89 is: 127,712.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,381.33 : 527,070.24 = 85,141.89 : x
  2. Step 2: Convert to fraction form
    351,381.33/527,070.24 = 85,141.89/x
  3. Step 3: Cross multiply
    351,381.33x = 527,070.24 × 85,141.89
  4. Step 4: Simplify right side
    351,381.33x = 44,875,756,396.35
  5. Step 5: Solve for x
    x = 44,875,756,396.35/351,381.33
  6. Step 6: Final answer
    x = 127,712.41

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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.