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Finding the Fourth Proportional to 374,438.10, 561,657.15 and 164,486.10

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Solution

The fourth proportional to 374,438.10, 561,657.15 and 164,486.10 is: 246,729.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,438.10 : 561,657.15 = 164,486.10 : x
  2. Step 2: Convert to fraction form
    374,438.10/561,657.15 = 164,486.10/x
  3. Step 3: Cross multiply
    374,438.10x = 561,657.15 × 164,486.10
  4. Step 4: Simplify right side
    374,438.10x = 92,384,794,140.62
  5. Step 5: Solve for x
    x = 92,384,794,140.62/374,438.10
  6. Step 6: Final answer
    x = 246,729.15

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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.