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Finding the Fourth Proportional to 256,940.92, 385,148.22 and 88,410.52

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Solution

The fourth proportional to 256,940.92, 385,148.22 and 88,410.52 is: 132,525.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,940.92 : 385,148.22 = 88,410.52 : x
  2. Step 2: Convert to fraction form
    256,940.92/385,148.22 = 88,410.52/x
  3. Step 3: Cross multiply
    256,940.92x = 385,148.22 × 88,410.52
  4. Step 4: Simplify right side
    256,940.92x = 34,051,154,407.27
  5. Step 5: Solve for x
    x = 34,051,154,407.27/256,940.92
  6. Step 6: Final answer
    x = 132,525.23

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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.