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Finding the Fourth Proportional to 393,779.54, 590,791.88 and 141,062.19

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Solution

The fourth proportional to 393,779.54, 590,791.88 and 141,062.19 is: 211,637.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,779.54 : 590,791.88 = 141,062.19 : x
  2. Step 2: Convert to fraction form
    393,779.54/590,791.88 = 141,062.19/x
  3. Step 3: Cross multiply
    393,779.54x = 590,791.88 × 141,062.19
  4. Step 4: Simplify right side
    393,779.54x = 83,338,395,721.71
  5. Step 5: Solve for x
    x = 83,338,395,721.71/393,779.54
  6. Step 6: Final answer
    x = 211,637.19

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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.