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Finding the Fourth Proportional to 93,144.32, 139,672.72 and 43,193.24

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Solution

The fourth proportional to 93,144.32, 139,672.72 and 43,193.24 is: 64,769.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,144.32 : 139,672.72 = 43,193.24 : x
  2. Step 2: Convert to fraction form
    93,144.32/139,672.72 = 43,193.24/x
  3. Step 3: Cross multiply
    93,144.32x = 139,672.72 × 43,193.24
  4. Step 4: Simplify right side
    93,144.32x = 6,032,917,316.41
  5. Step 5: Solve for x
    x = 6,032,917,316.41/93,144.32
  6. Step 6: Final answer
    x = 64,769.57

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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.