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Finding the Fourth Proportional to 188,584.72, 259,881.48 and 156,366.11

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Solution

The fourth proportional to 188,584.72, 259,881.48 and 156,366.11 is: 215,482.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,584.72 : 259,881.48 = 156,366.11 : x
  2. Step 2: Convert to fraction form
    188,584.72/259,881.48 = 156,366.11/x
  3. Step 3: Cross multiply
    188,584.72x = 259,881.48 × 156,366.11
  4. Step 4: Simplify right side
    188,584.72x = 40,636,656,738.35
  5. Step 5: Solve for x
    x = 40,636,656,738.35/188,584.72
  6. Step 6: Final answer
    x = 215,482.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.