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Finding the Fourth Proportional to 247,090.25, 370,211.84 and 165,885.18

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Solution

The fourth proportional to 247,090.25, 370,211.84 and 165,885.18 is: 248,543.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,090.25 : 370,211.84 = 165,885.18 : x
  2. Step 2: Convert to fraction form
    247,090.25/370,211.84 = 165,885.18/x
  3. Step 3: Cross multiply
    247,090.25x = 370,211.84 × 165,885.18
  4. Step 4: Simplify right side
    247,090.25x = 61,412,658,669.87
  5. Step 5: Solve for x
    x = 61,412,658,669.87/247,090.25
  6. Step 6: Final answer
    x = 248,543.43

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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.