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Finding the Fourth Proportional to 192,772.63, 265,994.59 and 121,101.91

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Solution

The fourth proportional to 192,772.63, 265,994.59 and 121,101.91 is: 167,100.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,772.63 : 265,994.59 = 121,101.91 : x
  2. Step 2: Convert to fraction form
    192,772.63/265,994.59 = 121,101.91/x
  3. Step 3: Cross multiply
    192,772.63x = 265,994.59 × 121,101.91
  4. Step 4: Simplify right side
    192,772.63x = 32,212,452,898.67
  5. Step 5: Solve for x
    x = 32,212,452,898.67/192,772.63
  6. Step 6: Final answer
    x = 167,100.76

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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.