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Finding the Fourth Proportional to 118,832.37, 178,123.20 and 43,904.53

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Solution

The fourth proportional to 118,832.37, 178,123.20 and 43,904.53 is: 65,810.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,832.37 : 178,123.20 = 43,904.53 : x
  2. Step 2: Convert to fraction form
    118,832.37/178,123.20 = 43,904.53/x
  3. Step 3: Cross multiply
    118,832.37x = 178,123.20 × 43,904.53
  4. Step 4: Simplify right side
    118,832.37x = 7,820,415,378.10
  5. Step 5: Solve for x
    x = 7,820,415,378.10/118,832.37
  6. Step 6: Final answer
    x = 65,810.48

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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.