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Finding the Fourth Proportional to 188,218.60, 282,327.90 and 82,925.80

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Solution

The fourth proportional to 188,218.60, 282,327.90 and 82,925.80 is: 124,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,218.60 : 282,327.90 = 82,925.80 : x
  2. Step 2: Convert to fraction form
    188,218.60/282,327.90 = 82,925.80/x
  3. Step 3: Cross multiply
    188,218.60x = 282,327.90 × 82,925.80
  4. Step 4: Simplify right side
    188,218.60x = 23,412,266,969.82
  5. Step 5: Solve for x
    x = 23,412,266,969.82/188,218.60
  6. Step 6: Final answer
    x = 124,388.70

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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.