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Finding the Fourth Proportional to 75,279.68, 103,867.62 and 43,448.50

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Solution

The fourth proportional to 75,279.68, 103,867.62 and 43,448.50 is: 59,948.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,279.68 : 103,867.62 = 43,448.50 : x
  2. Step 2: Convert to fraction form
    75,279.68/103,867.62 = 43,448.50/x
  3. Step 3: Cross multiply
    75,279.68x = 103,867.62 × 43,448.50
  4. Step 4: Simplify right side
    75,279.68x = 4,512,892,254.47
  5. Step 5: Solve for x
    x = 4,512,892,254.47/75,279.68
  6. Step 6: Final answer
    x = 59,948.35

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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.