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Finding the Fourth Proportional to 54,423.50, 75,139.85 and 33,215.06

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Solution

The fourth proportional to 54,423.50, 75,139.85 and 33,215.06 is: 45,858.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,423.50 : 75,139.85 = 33,215.06 : x
  2. Step 2: Convert to fraction form
    54,423.50/75,139.85 = 33,215.06/x
  3. Step 3: Cross multiply
    54,423.50x = 75,139.85 × 33,215.06
  4. Step 4: Simplify right side
    54,423.50x = 2,495,774,897.03
  5. Step 5: Solve for x
    x = 2,495,774,897.03/54,423.50
  6. Step 6: Final answer
    x = 45,858.41

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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.