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Finding the Fourth Proportional to 188,514.80, 282,772.20 and 83,279.60

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Solution

The fourth proportional to 188,514.80, 282,772.20 and 83,279.60 is: 124,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,514.80 : 282,772.20 = 83,279.60 : x
  2. Step 2: Convert to fraction form
    188,514.80/282,772.20 = 83,279.60/x
  3. Step 3: Cross multiply
    188,514.80x = 282,772.20 × 83,279.60
  4. Step 4: Simplify right side
    188,514.80x = 23,549,155,707.12
  5. Step 5: Solve for x
    x = 23,549,155,707.12/188,514.80
  6. Step 6: Final answer
    x = 124,919.40

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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.