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Finding the Fourth Proportional to 188,505.66, 282,798.11 and 55,374.72

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Solution

The fourth proportional to 188,505.66, 282,798.11 and 55,374.72 is: 83,073.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,505.66 : 282,798.11 = 55,374.72 : x
  2. Step 2: Convert to fraction form
    188,505.66/282,798.11 = 55,374.72/x
  3. Step 3: Cross multiply
    188,505.66x = 282,798.11 × 55,374.72
  4. Step 4: Simplify right side
    188,505.66x = 15,659,866,157.78
  5. Step 5: Solve for x
    x = 15,659,866,157.78/188,505.66
  6. Step 6: Final answer
    x = 83,073.72

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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.