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Finding the Fourth Proportional to 168,037.60, 252,056.40 and 84,056.80

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Solution

The fourth proportional to 168,037.60, 252,056.40 and 84,056.80 is: 126,085.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,037.60 : 252,056.40 = 84,056.80 : x
  2. Step 2: Convert to fraction form
    168,037.60/252,056.40 = 84,056.80/x
  3. Step 3: Cross multiply
    168,037.60x = 252,056.40 × 84,056.80
  4. Step 4: Simplify right side
    168,037.60x = 21,187,054,403.52
  5. Step 5: Solve for x
    x = 21,187,054,403.52/168,037.60
  6. Step 6: Final answer
    x = 126,085.20

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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.