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Finding the Fourth Proportional to 188,503.66, 282,795.11 and 55,372.72

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Solution

The fourth proportional to 188,503.66, 282,795.11 and 55,372.72 is: 83,070.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,503.66 : 282,795.11 = 55,372.72 : x
  2. Step 2: Convert to fraction form
    188,503.66/282,795.11 = 55,372.72/x
  3. Step 3: Cross multiply
    188,503.66x = 282,795.11 × 55,372.72
  4. Step 4: Simplify right side
    188,503.66x = 15,659,134,166.54
  5. Step 5: Solve for x
    x = 15,659,134,166.54/188,503.66
  6. Step 6: Final answer
    x = 83,070.72

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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.