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Finding the Fourth Proportional to 224,445.36, 336,431.37 and 74,645.58

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Solution

The fourth proportional to 224,445.36, 336,431.37 and 74,645.58 is: 111,889.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,445.36 : 336,431.37 = 74,645.58 : x
  2. Step 2: Convert to fraction form
    224,445.36/336,431.37 = 74,645.58/x
  3. Step 3: Cross multiply
    224,445.36x = 336,431.37 × 74,645.58
  4. Step 4: Simplify right side
    224,445.36x = 25,113,114,743.84
  5. Step 5: Solve for x
    x = 25,113,114,743.84/224,445.36
  6. Step 6: Final answer
    x = 111,889.66

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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.