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Finding the Fourth Proportional to 53,002.28, 73,144.90 and 29,129.80

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Solution

The fourth proportional to 53,002.28, 73,144.90 and 29,129.80 is: 40,200.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,002.28 : 73,144.90 = 29,129.80 : x
  2. Step 2: Convert to fraction form
    53,002.28/73,144.90 = 29,129.80/x
  3. Step 3: Cross multiply
    53,002.28x = 73,144.90 × 29,129.80
  4. Step 4: Simplify right side
    53,002.28x = 2,130,696,308.02
  5. Step 5: Solve for x
    x = 2,130,696,308.02/53,002.28
  6. Step 6: Final answer
    x = 40,200.09

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.