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Finding the Fourth Proportional to 122,571.90, 169,168.91 and 114,567.48

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Solution

The fourth proportional to 122,571.90, 169,168.91 and 114,567.48 is: 158,121.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,571.90 : 169,168.91 = 114,567.48 : x
  2. Step 2: Convert to fraction form
    122,571.90/169,168.91 = 114,567.48/x
  3. Step 3: Cross multiply
    122,571.90x = 169,168.91 × 114,567.48
  4. Step 4: Simplify right side
    122,571.90x = 19,381,255,140.21
  5. Step 5: Solve for x
    x = 19,381,255,140.21/122,571.90
  6. Step 6: Final answer
    x = 158,121.52

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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.