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Finding the Fourth Proportional to 169,681.92, 234,412.56 and 111,675.42

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Solution

The fourth proportional to 169,681.92, 234,412.56 and 111,675.42 is: 154,277.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,681.92 : 234,412.56 = 111,675.42 : x
  2. Step 2: Convert to fraction form
    169,681.92/234,412.56 = 111,675.42/x
  3. Step 3: Cross multiply
    169,681.92x = 234,412.56 × 111,675.42
  4. Step 4: Simplify right side
    169,681.92x = 26,178,121,091.28
  5. Step 5: Solve for x
    x = 26,178,121,091.28/169,681.92
  6. Step 6: Final answer
    x = 154,277.61

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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.