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Finding the Fourth Proportional to 374,297.25, 561,606.72 and 121,655.15

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Solution

The fourth proportional to 374,297.25, 561,606.72 and 121,655.15 is: 182,535.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,297.25 : 561,606.72 = 121,655.15 : x
  2. Step 2: Convert to fraction form
    374,297.25/561,606.72 = 121,655.15/x
  3. Step 3: Cross multiply
    374,297.25x = 561,606.72 × 121,655.15
  4. Step 4: Simplify right side
    374,297.25x = 68,322,348,604.39
  5. Step 5: Solve for x
    x = 68,322,348,604.39/374,297.25
  6. Step 6: Final answer
    x = 182,535.00

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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.