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Finding the Fourth Proportional to 122,973.44, 169,706.76 and 75,225.92

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Solution

The fourth proportional to 122,973.44, 169,706.76 and 75,225.92 is: 103,813.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,973.44 : 169,706.76 = 75,225.92 : x
  2. Step 2: Convert to fraction form
    122,973.44/169,706.76 = 75,225.92/x
  3. Step 3: Cross multiply
    122,973.44x = 169,706.76 × 75,225.92
  4. Step 4: Simplify right side
    122,973.44x = 12,766,347,151.22
  5. Step 5: Solve for x
    x = 12,766,347,151.22/122,973.44
  6. Step 6: Final answer
    x = 103,813.86

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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.