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Finding the Fourth Proportional to 113,503.40, 170,352.30 and 50,420.60

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Solution

The fourth proportional to 113,503.40, 170,352.30 and 50,420.60 is: 75,674.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,503.40 : 170,352.30 = 50,420.60 : x
  2. Step 2: Convert to fraction form
    113,503.40/170,352.30 = 50,420.60/x
  3. Step 3: Cross multiply
    113,503.40x = 170,352.30 × 50,420.60
  4. Step 4: Simplify right side
    113,503.40x = 8,589,265,177.38
  5. Step 5: Solve for x
    x = 8,589,265,177.38/113,503.40
  6. Step 6: Final answer
    x = 75,674.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.