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Finding the Fourth Proportional to 75,280.35, 103,870.29 and 43,442.49

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Solution

The fourth proportional to 75,280.35, 103,870.29 and 43,442.49 is: 59,941.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,280.35 : 103,870.29 = 43,442.49 : x
  2. Step 2: Convert to fraction form
    75,280.35/103,870.29 = 43,442.49/x
  3. Step 3: Cross multiply
    75,280.35x = 103,870.29 × 43,442.49
  4. Step 4: Simplify right side
    75,280.35x = 4,512,384,034.62
  5. Step 5: Solve for x
    x = 4,512,384,034.62/75,280.35
  6. Step 6: Final answer
    x = 59,941.06

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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.