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Finding the Fourth Proportional to 72,929.64, 109,394.48 and 23,014.80

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Solution

The fourth proportional to 72,929.64, 109,394.48 and 23,014.80 is: 34,522.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,929.64 : 109,394.48 = 23,014.80 : x
  2. Step 2: Convert to fraction form
    72,929.64/109,394.48 = 23,014.80/x
  3. Step 3: Cross multiply
    72,929.64x = 109,394.48 × 23,014.80
  4. Step 4: Simplify right side
    72,929.64x = 2,517,692,078.30
  5. Step 5: Solve for x
    x = 2,517,692,078.30/72,929.64
  6. Step 6: Final answer
    x = 34,522.21

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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.