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Finding the Fourth Proportional to 75,310.82, 103,925.18 and 43,044.47

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Solution

The fourth proportional to 75,310.82, 103,925.18 and 43,044.47 is: 59,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,310.82 : 103,925.18 = 43,044.47 : x
  2. Step 2: Convert to fraction form
    75,310.82/103,925.18 = 43,044.47/x
  3. Step 3: Cross multiply
    75,310.82x = 103,925.18 × 43,044.47
  4. Step 4: Simplify right side
    75,310.82x = 4,473,403,880.74
  5. Step 5: Solve for x
    x = 4,473,403,880.74/75,310.82
  6. Step 6: Final answer
    x = 59,399.22

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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.