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Finding the Fourth Proportional to 185,609.92, 255,972.88 and 156,989.68

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Solution

The fourth proportional to 185,609.92, 255,972.88 and 156,989.68 is: 216,502.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,609.92 : 255,972.88 = 156,989.68 : x
  2. Step 2: Convert to fraction form
    185,609.92/255,972.88 = 156,989.68/x
  3. Step 3: Cross multiply
    185,609.92x = 255,972.88 × 156,989.68
  4. Step 4: Simplify right side
    185,609.92x = 40,185,100,519.88
  5. Step 5: Solve for x
    x = 40,185,100,519.88/185,609.92
  6. Step 6: Final answer
    x = 216,502.98

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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.