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Finding the Fourth Proportional to 75,339.80, 103,943.11 and 43,051.22

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Solution

The fourth proportional to 75,339.80, 103,943.11 and 43,051.22 is: 59,395.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,339.80 : 103,943.11 = 43,051.22 : x
  2. Step 2: Convert to fraction form
    75,339.80/103,943.11 = 43,051.22/x
  3. Step 3: Cross multiply
    75,339.80x = 103,943.11 × 43,051.22
  4. Step 4: Simplify right side
    75,339.80x = 4,474,877,539.26
  5. Step 5: Solve for x
    x = 4,474,877,539.26/75,339.80
  6. Step 6: Final answer
    x = 59,395.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.