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Finding the Fourth Proportional to 365,013.51, 547,425.21 and 154,543.11

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Solution

The fourth proportional to 365,013.51, 547,425.21 and 154,543.11 is: 231,774.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,013.51 : 547,425.21 = 154,543.11 : x
  2. Step 2: Convert to fraction form
    365,013.51/547,425.21 = 154,543.11/x
  3. Step 3: Cross multiply
    365,013.51x = 547,425.21 × 154,543.11
  4. Step 4: Simplify right side
    365,013.51x = 84,600,794,445.80
  5. Step 5: Solve for x
    x = 84,600,794,445.80/365,013.51
  6. Step 6: Final answer
    x = 231,774.42

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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.