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Finding the Fourth Proportional to 68,503.01, 94,538.58 and 38,289.60

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Solution

The fourth proportional to 68,503.01, 94,538.58 and 38,289.60 is: 52,842.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,503.01 : 94,538.58 = 38,289.60 : x
  2. Step 2: Convert to fraction form
    68,503.01/94,538.58 = 38,289.60/x
  3. Step 3: Cross multiply
    68,503.01x = 94,538.58 × 38,289.60
  4. Step 4: Simplify right side
    68,503.01x = 3,619,844,269.18
  5. Step 5: Solve for x
    x = 3,619,844,269.18/68,503.01
  6. Step 6: Final answer
    x = 52,842.12

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Why These Related Problems?

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