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Finding the Fourth Proportional to 63,985.60, 95,978.40 and 50,622.40

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Solution

The fourth proportional to 63,985.60, 95,978.40 and 50,622.40 is: 75,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,985.60 : 95,978.40 = 50,622.40 : x
  2. Step 2: Convert to fraction form
    63,985.60/95,978.40 = 50,622.40/x
  3. Step 3: Cross multiply
    63,985.60x = 95,978.40 × 50,622.40
  4. Step 4: Simplify right side
    63,985.60x = 4,858,656,956.16
  5. Step 5: Solve for x
    x = 4,858,656,956.16/63,985.60
  6. Step 6: Final answer
    x = 75,933.60

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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.