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Finding the Fourth Proportional to 123,192.09, 183,913.13 and 118,818.09

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Solution

The fourth proportional to 123,192.09, 183,913.13 and 118,818.09 is: 177,383.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,192.09 : 183,913.13 = 118,818.09 : x
  2. Step 2: Convert to fraction form
    123,192.09/183,913.13 = 118,818.09/x
  3. Step 3: Cross multiply
    123,192.09x = 183,913.13 × 118,818.09
  4. Step 4: Simplify right side
    123,192.09x = 21,852,207,129.57
  5. Step 5: Solve for x
    x = 21,852,207,129.57/123,192.09
  6. Step 6: Final answer
    x = 177,383.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.