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Finding the Fourth Proportional to 110,571.77, 152,468.46 and 74,699.50

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Solution

The fourth proportional to 110,571.77, 152,468.46 and 74,699.50 is: 103,003.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,571.77 : 152,468.46 = 74,699.50 : x
  2. Step 2: Convert to fraction form
    110,571.77/152,468.46 = 74,699.50/x
  3. Step 3: Cross multiply
    110,571.77x = 152,468.46 × 74,699.50
  4. Step 4: Simplify right side
    110,571.77x = 11,389,316,965.43
  5. Step 5: Solve for x
    x = 11,389,316,965.43/110,571.77
  6. Step 6: Final answer
    x = 103,003.84

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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.