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Finding the Fourth Proportional to 188,720.66, 282,672.75 and 88,731.02

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Solution

The fourth proportional to 188,720.66, 282,672.75 and 88,731.02 is: 132,904.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,720.66 : 282,672.75 = 88,731.02 : x
  2. Step 2: Convert to fraction form
    188,720.66/282,672.75 = 88,731.02/x
  3. Step 3: Cross multiply
    188,720.66x = 282,672.75 × 88,731.02
  4. Step 4: Simplify right side
    188,720.66x = 25,081,841,433.71
  5. Step 5: Solve for x
    x = 25,081,841,433.71/188,720.66
  6. Step 6: Final answer
    x = 132,904.59

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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.