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Finding the Fourth Proportional to 72,808.02, 109,211.90 and 22,892.47

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Solution

The fourth proportional to 72,808.02, 109,211.90 and 22,892.47 is: 34,338.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,808.02 : 109,211.90 = 22,892.47 : x
  2. Step 2: Convert to fraction form
    72,808.02/109,211.90 = 22,892.47/x
  3. Step 3: Cross multiply
    72,808.02x = 109,211.90 × 22,892.47
  4. Step 4: Simplify right side
    72,808.02x = 2,500,130,144.39
  5. Step 5: Solve for x
    x = 2,500,130,144.39/72,808.02
  6. Step 6: Final answer
    x = 34,338.66

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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.