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Finding the Fourth Proportional to 148,628.96, 205,200.96 and 103,293.44

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Solution

The fourth proportional to 148,628.96, 205,200.96 and 103,293.44 is: 142,609.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,628.96 : 205,200.96 = 103,293.44 : x
  2. Step 2: Convert to fraction form
    148,628.96/205,200.96 = 103,293.44/x
  3. Step 3: Cross multiply
    148,628.96x = 205,200.96 × 103,293.44
  4. Step 4: Simplify right side
    148,628.96x = 21,195,913,049.70
  5. Step 5: Solve for x
    x = 21,195,913,049.70/148,628.96
  6. Step 6: Final answer
    x = 142,609.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.