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Finding the Fourth Proportional to 118,262.68, 177,417.38 and 43,383.51

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Solution

The fourth proportional to 118,262.68, 177,417.38 and 43,383.51 is: 65,083.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,262.68 : 177,417.38 = 43,383.51 : x
  2. Step 2: Convert to fraction form
    118,262.68/177,417.38 = 43,383.51/x
  3. Step 3: Cross multiply
    118,262.68x = 177,417.38 × 43,383.51
  4. Step 4: Simplify right side
    118,262.68x = 7,696,988,679.40
  5. Step 5: Solve for x
    x = 7,696,988,679.40/118,262.68
  6. Step 6: Final answer
    x = 65,083.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.