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Finding the Fourth Proportional to 75,135.93, 112,524.98 and 43,479.26

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Solution

The fourth proportional to 75,135.93, 112,524.98 and 43,479.26 is: 65,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,135.93 : 112,524.98 = 43,479.26 : x
  2. Step 2: Convert to fraction form
    75,135.93/112,524.98 = 43,479.26/x
  3. Step 3: Cross multiply
    75,135.93x = 112,524.98 × 43,479.26
  4. Step 4: Simplify right side
    75,135.93x = 4,892,502,861.91
  5. Step 5: Solve for x
    x = 4,892,502,861.91/75,135.93
  6. Step 6: Final answer
    x = 65,115.36

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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.