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Finding the Fourth Proportional to 84,981.12, 127,356.83 and 32,361.90

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Solution

The fourth proportional to 84,981.12, 127,356.83 and 32,361.90 is: 48,499.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,981.12 : 127,356.83 = 32,361.90 : x
  2. Step 2: Convert to fraction form
    84,981.12/127,356.83 = 32,361.90/x
  3. Step 3: Cross multiply
    84,981.12x = 127,356.83 × 32,361.90
  4. Step 4: Simplify right side
    84,981.12x = 4,121,509,644.33
  5. Step 5: Solve for x
    x = 4,121,509,644.33/84,981.12
  6. Step 6: Final answer
    x = 48,499.12

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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.