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Finding the Fourth Proportional to 188,390.76, 282,479.63 and 61,996.86

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Solution

The fourth proportional to 188,390.76, 282,479.63 and 61,996.86 is: 92,960.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,390.76 : 282,479.63 = 61,996.86 : x
  2. Step 2: Convert to fraction form
    188,390.76/282,479.63 = 61,996.86/x
  3. Step 3: Cross multiply
    188,390.76x = 282,479.63 × 61,996.86
  4. Step 4: Simplify right side
    188,390.76x = 17,512,849,763.98
  5. Step 5: Solve for x
    x = 17,512,849,763.98/188,390.76
  6. Step 6: Final answer
    x = 92,960.24

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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.