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Finding the Fourth Proportional to 171,869.60, 257,998.80 and 132,600.80

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Solution

The fourth proportional to 171,869.60, 257,998.80 and 132,600.80 is: 199,051.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,869.60 : 257,998.80 = 132,600.80 : x
  2. Step 2: Convert to fraction form
    171,869.60/257,998.80 = 132,600.80/x
  3. Step 3: Cross multiply
    171,869.60x = 257,998.80 × 132,600.80
  4. Step 4: Simplify right side
    171,869.60x = 34,210,847,279.04
  5. Step 5: Solve for x
    x = 34,210,847,279.04/171,869.60
  6. Step 6: Final answer
    x = 199,051.18

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1.5x scale

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.