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Finding the Fourth Proportional to 136,467.92, 204,630.56 and 42,948.56

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Solution

The fourth proportional to 136,467.92, 204,630.56 and 42,948.56 is: 64,400.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,467.92 : 204,630.56 = 42,948.56 : x
  2. Step 2: Convert to fraction form
    136,467.92/204,630.56 = 42,948.56/x
  3. Step 3: Cross multiply
    136,467.92x = 204,630.56 × 42,948.56
  4. Step 4: Simplify right side
    136,467.92x = 8,788,587,883.99
  5. Step 5: Solve for x
    x = 8,788,587,883.99/136,467.92
  6. Step 6: Final answer
    x = 64,400.39

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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.