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Finding the Fourth Proportional to 169,820.79, 234,292.94 and 101,859.76

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Solution

The fourth proportional to 169,820.79, 234,292.94 and 101,859.76 is: 140,530.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,820.79 : 234,292.94 = 101,859.76 : x
  2. Step 2: Convert to fraction form
    169,820.79/234,292.94 = 101,859.76/x
  3. Step 3: Cross multiply
    169,820.79x = 234,292.94 × 101,859.76
  4. Step 4: Simplify right side
    169,820.79x = 23,865,022,638.09
  5. Step 5: Solve for x
    x = 23,865,022,638.09/169,820.79
  6. Step 6: Final answer
    x = 140,530.63

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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.