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Finding the Fourth Proportional to 374,493.16, 561,717.78 and 108,247.78

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Solution

The fourth proportional to 374,493.16, 561,717.78 and 108,247.78 is: 162,365.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,493.16 : 561,717.78 = 108,247.78 : x
  2. Step 2: Convert to fraction form
    374,493.16/561,717.78 = 108,247.78/x
  3. Step 3: Cross multiply
    374,493.16x = 561,717.78 × 108,247.78
  4. Step 4: Simplify right side
    374,493.16x = 60,804,702,671.53
  5. Step 5: Solve for x
    x = 60,804,702,671.53/374,493.16
  6. Step 6: Final answer
    x = 162,365.32

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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.