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Finding the Fourth Proportional to 343,884.43, 515,801.87 and 91,159.16

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Solution

The fourth proportional to 343,884.43, 515,801.87 and 91,159.16 is: 136,732.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,884.43 : 515,801.87 = 91,159.16 : x
  2. Step 2: Convert to fraction form
    343,884.43/515,801.87 = 91,159.16/x
  3. Step 3: Cross multiply
    343,884.43x = 515,801.87 × 91,159.16
  4. Step 4: Simplify right side
    343,884.43x = 47,020,064,739.83
  5. Step 5: Solve for x
    x = 47,020,064,739.83/343,884.43
  6. Step 6: Final answer
    x = 136,732.17

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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.