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Finding the Fourth Proportional to 374,484.60, 561,757.82 and 121,759.34

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Solution

The fourth proportional to 374,484.60, 561,757.82 and 121,759.34 is: 182,649.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,484.60 : 561,757.82 = 121,759.34 : x
  2. Step 2: Convert to fraction form
    374,484.60/561,757.82 = 121,759.34/x
  3. Step 3: Cross multiply
    374,484.60x = 561,757.82 × 121,759.34
  4. Step 4: Simplify right side
    374,484.60x = 68,399,257,985.45
  5. Step 5: Solve for x
    x = 68,399,257,985.45/374,484.60
  6. Step 6: Final answer
    x = 182,649.05

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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.