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Finding the Fourth Proportional to 72,825.93, 109,254.49 and 41,250.91

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Solution

The fourth proportional to 72,825.93, 109,254.49 and 41,250.91 is: 61,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,825.93 : 109,254.49 = 41,250.91 : x
  2. Step 2: Convert to fraction form
    72,825.93/109,254.49 = 41,250.91/x
  3. Step 3: Cross multiply
    72,825.93x = 109,254.49 × 41,250.91
  4. Step 4: Simplify right side
    72,825.93x = 4,506,847,134.09
  5. Step 5: Solve for x
    x = 4,506,847,134.09/72,825.93
  6. Step 6: Final answer
    x = 61,885.20

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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.