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Finding the Fourth Proportional to 72,271.84, 108,333.64 and 27,881.14

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Solution

The fourth proportional to 72,271.84, 108,333.64 and 27,881.14 is: 41,793.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,271.84 : 108,333.64 = 27,881.14 : x
  2. Step 2: Convert to fraction form
    72,271.84/108,333.64 = 27,881.14/x
  3. Step 3: Cross multiply
    72,271.84x = 108,333.64 × 27,881.14
  4. Step 4: Simplify right side
    72,271.84x = 3,020,465,383.55
  5. Step 5: Solve for x
    x = 3,020,465,383.55/72,271.84
  6. Step 6: Final answer
    x = 41,793.12

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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.