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Finding the Fourth Proportional to 169,791.84, 234,326.64 and 109,488

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Solution

The fourth proportional to 169,791.84, 234,326.64 and 109,488 is: 151,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,791.84 : 234,326.64 = 109,488 : x
  2. Step 2: Convert to fraction form
    169,791.84/234,326.64 = 109,488/x
  3. Step 3: Cross multiply
    169,791.84x = 234,326.64 × 109,488
  4. Step 4: Simplify right side
    169,791.84x = 25,655,955,160.32
  5. Step 5: Solve for x
    x = 25,655,955,160.32/169,791.84
  6. Step 6: Final answer
    x = 151,102.40

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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.