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Finding the Fourth Proportional to 239,157.30, 358,756.60 and 61,662.80

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Solution

The fourth proportional to 239,157.30, 358,756.60 and 61,662.80 is: 92,499.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,157.30 : 358,756.60 = 61,662.80 : x
  2. Step 2: Convert to fraction form
    239,157.30/358,756.60 = 61,662.80/x
  3. Step 3: Cross multiply
    239,157.30x = 358,756.60 × 61,662.80
  4. Step 4: Simplify right side
    239,157.30x = 22,121,936,474.48
  5. Step 5: Solve for x
    x = 22,121,936,474.48/239,157.30
  6. Step 6: Final answer
    x = 92,499.52

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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.