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Finding the Fourth Proportional to 188,070.45, 282,102.69 and 75,748.02

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Solution

The fourth proportional to 188,070.45, 282,102.69 and 75,748.02 is: 113,620.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,070.45 : 282,102.69 = 75,748.02 : x
  2. Step 2: Convert to fraction form
    188,070.45/282,102.69 = 75,748.02/x
  3. Step 3: Cross multiply
    188,070.45x = 282,102.69 × 75,748.02
  4. Step 4: Simplify right side
    188,070.45x = 21,368,720,204.17
  5. Step 5: Solve for x
    x = 21,368,720,204.17/188,070.45
  6. Step 6: Final answer
    x = 113,620.83

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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.