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Finding the Fourth Proportional to 165,571.78, 248,184.78 and 76,752.04

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Solution

The fourth proportional to 165,571.78, 248,184.78 and 76,752.04 is: 115,047.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,571.78 : 248,184.78 = 76,752.04 : x
  2. Step 2: Convert to fraction form
    165,571.78/248,184.78 = 76,752.04/x
  3. Step 3: Cross multiply
    165,571.78x = 248,184.78 × 76,752.04
  4. Step 4: Simplify right side
    165,571.78x = 19,048,688,161.95
  5. Step 5: Solve for x
    x = 19,048,688,161.95/165,571.78
  6. Step 6: Final answer
    x = 115,047.92

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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.