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Finding the Fourth Proportional to 74,992.25, 112,543.64 and 35,549.21

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Solution

The fourth proportional to 74,992.25, 112,543.64 and 35,549.21 is: 53,350.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,992.25 : 112,543.64 = 35,549.21 : x
  2. Step 2: Convert to fraction form
    74,992.25/112,543.64 = 35,549.21/x
  3. Step 3: Cross multiply
    74,992.25x = 112,543.64 × 35,549.21
  4. Step 4: Simplify right side
    74,992.25x = 4,000,836,752.06
  5. Step 5: Solve for x
    x = 4,000,836,752.06/74,992.25
  6. Step 6: Final answer
    x = 53,350.01

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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.