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Finding the Fourth Proportional to 122,751.84, 169,362.52 and 73,673.47

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Solution

The fourth proportional to 122,751.84, 169,362.52 and 73,673.47 is: 101,648.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,751.84 : 169,362.52 = 73,673.47 : x
  2. Step 2: Convert to fraction form
    122,751.84/169,362.52 = 73,673.47/x
  3. Step 3: Cross multiply
    122,751.84x = 169,362.52 × 73,673.47
  4. Step 4: Simplify right side
    122,751.84x = 12,477,524,536.34
  5. Step 5: Solve for x
    x = 12,477,524,536.34/122,751.84
  6. Step 6: Final answer
    x = 101,648.37

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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.