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Finding the Fourth Proportional to 75,146.43, 112,669.62 and 45,093.00

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Solution

The fourth proportional to 75,146.43, 112,669.62 and 45,093.00 is: 67,609.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,146.43 : 112,669.62 = 45,093.00 : x
  2. Step 2: Convert to fraction form
    75,146.43/112,669.62 = 45,093.00/x
  3. Step 3: Cross multiply
    75,146.43x = 112,669.62 × 45,093.00
  4. Step 4: Simplify right side
    75,146.43x = 5,080,610,611.31
  5. Step 5: Solve for x
    x = 5,080,610,611.31/75,146.43
  6. Step 6: Final answer
    x = 67,609.48

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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.