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Finding the Fourth Proportional to 188,720.16, 282,672 and 88,730.52

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Solution

The fourth proportional to 188,720.16, 282,672 and 88,730.52 is: 132,903.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,720.16 : 282,672 = 88,730.52 : x
  2. Step 2: Convert to fraction form
    188,720.16/282,672 = 88,730.52/x
  3. Step 3: Cross multiply
    188,720.16x = 282,672 × 88,730.52
  4. Step 4: Simplify right side
    188,720.16x = 25,081,633,549.44
  5. Step 5: Solve for x
    x = 25,081,633,549.44/188,720.16
  6. Step 6: Final answer
    x = 132,903.84

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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.