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Finding the Fourth Proportional to 371,859.48, 557,802.43 and 119,107.13

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Solution

The fourth proportional to 371,859.48, 557,802.43 and 119,107.13 is: 178,664.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,859.48 : 557,802.43 = 119,107.13 : x
  2. Step 2: Convert to fraction form
    371,859.48/557,802.43 = 119,107.13/x
  3. Step 3: Cross multiply
    371,859.48x = 557,802.43 × 119,107.13
  4. Step 4: Simplify right side
    371,859.48x = 66,438,246,544.33
  5. Step 5: Solve for x
    x = 66,438,246,544.33/371,859.48
  6. Step 6: Final answer
    x = 178,664.93

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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.