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Finding the Fourth Proportional to 163,708.70, 225,609.27 and 143,433.50

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Solution

The fourth proportional to 163,708.70, 225,609.27 and 143,433.50 is: 197,667.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,708.70 : 225,609.27 = 143,433.50 : x
  2. Step 2: Convert to fraction form
    163,708.70/225,609.27 = 143,433.50/x
  3. Step 3: Cross multiply
    163,708.70x = 225,609.27 × 143,433.50
  4. Step 4: Simplify right side
    163,708.70x = 32,359,927,228.55
  5. Step 5: Solve for x
    x = 32,359,927,228.55/163,708.70
  6. Step 6: Final answer
    x = 197,667.73

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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.