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Finding the Fourth Proportional to 101,211.40, 151,817.10 and 63,886.60

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Solution

The fourth proportional to 101,211.40, 151,817.10 and 63,886.60 is: 95,829.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,211.40 : 151,817.10 = 63,886.60 : x
  2. Step 2: Convert to fraction form
    101,211.40/151,817.10 = 63,886.60/x
  3. Step 3: Cross multiply
    101,211.40x = 151,817.10 × 63,886.60
  4. Step 4: Simplify right side
    101,211.40x = 9,699,078,340.86
  5. Step 5: Solve for x
    x = 9,699,078,340.86/101,211.40
  6. Step 6: Final answer
    x = 95,829.90

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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.