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Finding the Fourth Proportional to 188,070.96, 282,107.52 and 75,802.80

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Solution

The fourth proportional to 188,070.96, 282,107.52 and 75,802.80 is: 113,704.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,070.96 : 282,107.52 = 75,802.80 : x
  2. Step 2: Convert to fraction form
    188,070.96/282,107.52 = 75,802.80/x
  3. Step 3: Cross multiply
    188,070.96x = 282,107.52 × 75,802.80
  4. Step 4: Simplify right side
    188,070.96x = 21,384,539,917.06
  5. Step 5: Solve for x
    x = 21,384,539,917.06/188,070.96
  6. Step 6: Final answer
    x = 113,704.64

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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.