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Finding the Fourth Proportional to 188,712.76, 282,920.20 and 93,891.16

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Solution

The fourth proportional to 188,712.76, 282,920.20 and 93,891.16 is: 140,762.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,712.76 : 282,920.20 = 93,891.16 : x
  2. Step 2: Convert to fraction form
    188,712.76/282,920.20 = 93,891.16/x
  3. Step 3: Cross multiply
    188,712.76x = 282,920.20 × 93,891.16
  4. Step 4: Simplify right side
    188,712.76x = 26,563,705,765.43
  5. Step 5: Solve for x
    x = 26,563,705,765.43/188,712.76
  6. Step 6: Final answer
    x = 140,762.64

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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.